7:42AM

8 days a week! It’s bonus time! An 8 day forecast? Say it ain’t so! Just once in a while, and this time it’s because next weekend is Labor Day Weekend. So let’s attempt to simply explain how weather systems should behave during this time and then forecast the expected resultant weather.

A strong ridge of high pressure will reside in the central USA for much of this week. A 2-part disturbance that came over the top of this ridge will fly across southern New England from northwest to southeast today bringing a couple shower threats and possibly a thunderstorm to a few areas, but much of the region will be rain-free much of the time. Another disturbance is set to arrive on Wednesday and its associated front will hang along the South Coast and be the focus for another wave of low pressure that may prolong unsettled weather into Thursday. By Friday, all of this should be on its way out and a shot of drier air will arrive, resulting in very nice weather into the holiday weekend. The deeper into the weekend we go, we will see the heat from the middle of the country starting to nose its way toward New England with the feel of Summer once again becoming prominent.

Forecast for southeastern New England (southern NH, eastern MA, and RI)…

TODAY: Mostly cloudy morning with weakening area of showers from northwest to southeast across the region then lots of clouds but partial sun and isolated showers or thunderstorms in the afternoon. Most areas remain rain free in the afternoon with the greatest chance of showers and storms well south and southwest of Boston. Highs upper 70s to lower 80s. Wind S to SW  5-15 MPH gusting over 20 MPH.

TONIGHT: Variably cloudy. A few showers and thunderstorms mainly far southern MA and RI. Lows in the 60s. Wind SW 5-15 MPH.

TUESDAY: Partly sunny. A slight chance of a few afternoon showers or thunderstorms mainly south and west of Boston. Highs 75-81, coolest coast. Wind NW up to 10 MPH shifting to E.

WEDNESDAY: Variably cloudy. Scattered showers and thunderstorms. Low 65. High 82.

THURSDAY: Partly sunny. Scattered showers and thunderstorms. Low 65. High 83.

FRIDAY: Partly cloudy. Low 59. High 79.

SATURDAY: Mostly sunny. Low 58. High 81.

SUNDAY: Mostly sunny. Low 61. High 85.

MONDAY – LABOR DAY: Partly cloudy. Low 66. High 88.

9:31AM

High pressure remains in control today with another beautiful day capping off a great weather weekend of low humidity, mild air and some cooling sea breezes near the coast.

An unsettled period of weather is expected Monday through Thursday as we’ll be near the boundary of the refreshing air and the northeastern corner of a big central US heat wave.

Nicer weather is expected to return Friday and on into the start of the Labor Day Weekend before the heat in the Midwest starts to shift into the eastern US.

More details on all of this posted this evening in a special extra extended forecast for next week including the entirety of the Labor Day Weekend.

For now, a quick update to the forecast for southeastern New England…

TODAY: Sunny. Highs 75-83, coolest coast. Wind variable, mainly N, 5-15 MPH, but coastal sea breezes as well.

TONIGHT: Increasing clouds. Lows in the 60s.  Wind SE to S 5-15 MPH.

MONDAY: Lots of clouds and a passing shower possible from northwest to southeast in the morning, then variably cloudy including periods of sun during the afternoon and a slight risk of a few passing showers or thunderstorms (most areas will remain rain-free). Highs 75-83, coolest Cape Cod & Islands. Wind S to SW increasing to 10-20 MPH.

MONDAY NIGHT: Variably cloudy. Showers and thunderstorms possible early, especially southern MA and RI. Lows in the 60s. Wind SW 5-15 MPH becoming light variable.

TUESDAY: Partly sunny. Chance of a few showers and thunderstorms southeastern MA and RI. Highs 77-84. Wind variable 5-15 MPH.

WEDNESDAY: Mostly cloudy with a better chance of showers and thunderstorms. Low 64. High 79.

THURSDAY: Partly sunny with isolated showers and thunderstorms. Low 66. High 84.

FRIDAY: Partly cloudy. Low 59. High 80.

SATURDAY: Mostly sunny. Low 55. High 78.

7:34AM

One more very warm to hot day today ahead of a cold front. A disturbance ahead of this front may kick off a few showers or thunderstorms mainly in southern areas this afternoon, and the cold front itself may do the same in any area tonight into Friday. Cooler and drier air flows in for Friday night into the weekend. It warms up a little early next week but being near a frontal boundary next week means that it may be more unsettled.

Forecast for southeastern New England…

TODAY: Partly cloudy. Slight chance of showers and thunderstorms mainly after 1PM and mainly south of the Mass Pike. Highs in the 80s, except upper 70s South Coast and may touch 90 a few inland areas. Wind SW 5-15 MPH.

TONIGHT: Variably cloudy. Chance of a few showers and thunderstorms. Lows in the 60s. Wind SW 5-15 MPH.

FRIDAY: Variably cloudy. Chance of a few showers and thunderstorms, mainly morning. Highs around 80. Wind shifting to NW then N 5-15 MPH.

SATURDAY: Partly cloudy. Low 59. High 77.

SUNDAY: Sunny. Low 55. High 80.

MONDAY: Partly cloudy. Low 59. High 83.

TUESDAY & WEDNESDAY: Partly sunny. Chance of showers and thunderstorms. Lows around 60. Highs around 80.

4:25PM

Who said the heat was done weeks ago? Not I. Climatology says that you do NOT count out hot days at that point in the season. While it’s true we slipped into a cool pattern for the end of July and the first half of August, for the time being we are out of that pattern and the peak of the warm side of the new pattern will take place during the next 2 days as a high pressure ridge dominates the weather across southern New England. No not everybody will reach 90 Wednesday & Thursday, but we will see a few 90+ readings around the area. A cold front will put an end to that as it slides across the region Thursday night, bringing cooler air in for Friday and the weekend. A back-side warmup is expected for next Monday before we slip into a back-and-forth regime as we head down the home stretch of August next week.

Updated forecast for southeastern New England (southeastern NH, eastern MA, RI)…

THROUGH SUNSET: Sunshine. Temperatures ranging from 70s near the coast where winds are blowing onshore to the 80s inland. Wind varying from SE to SW 5-15 MPH.

TONIGHT: Clear. Lows 60-68. Wind light SW.

WEDNESDAY: Sunny. Highs 77-92, coolest Cape Cod and South Coast. Wind SW 5-15 MPH with some coastal sea breezes.

WEDNESDAY NIGHT: Clear. Lows 63-70. Wind SW up to 10 MPH.

THURSDAY: Partly cloudy and hazy. Isolated thunderstorms possible after 2PM. Muggy. Highs 85-92 except upper 70s to lower 80s across the South Coast, Cape Cod & Islands. Wind SW 10-20 MPH.

FRIDAY: Partly cloudy. Early showers possible Cape Cod. Low 62. High 80.

SATURDAY: Mostly sunny. Low 56. High 79.

SUNDAY: Mostly sunny. Low 55. High 79.

MONDAY: Partly cloudy. Low 60. High 86.

TUESDAY: Partly sunny. Chance of showers. Low 60. High 80.

10:53PM

One’s like or dislike of the weather is a matter of personal opinion of course, but the vast majority of you will consider this coming week to be the best of the entire Summer, and possibly the best of the entirety of 2013. High pressure will dominate, with only a dry cold frontal passage Friday morning. Temperatures start out with a warming trend, reaching hot levels (by August standards) by midweek, along with some increase in humidity, then a little cooler and less humid by the end of the week. If you picked this week for vacation, YOU WIN!

Forecast for southeastern New England…

MONDAY: Partly sunny. Highs 75-85, coolest Cape Cod & South Coast, mildest interior MA and southern NH. Wind W 5-15 MPH.

MONDAY NIGHT: Partly cloudy to mostly clear. Lows 57-64. Wind light W.

TUESDAY: Mostly sunny. Highs 78-86. Wind W 5-15 MPH.

WEDNESDAY: Mostly sunny. Lows 58-68. Highs 81-91.

THURSDAY: Partly cloudy. Lows 60-70. Highs 82-92.

FRIDAY: Partly cloudy. Lows 56-66. Highs 75-85.

SATURDAY: Sunny. Lows 55-65. Highs 75-85.

SUNDAY: Sunny. Lows 53-63. Highs 75-85.

1:24PM

What will be a miss is the unsettled weather, passing south of New England, staying offshore this weekend and only tossing some high cloudiness into the region, a little thicker at times near the South Coast, and by later in the coming week we may have to deal with a passing cold front setting off a few showers and thunderstorms, but otherwise the long stretch of mainly fair weather will continue, along with a more mid Summer feel to the air.

Updated forecast for southeastern New England…

THIS AFTERNOON: Partly cloudy. Highs 70s coast, lower 80s inland. Wind N shifting to E 5-15 MPH.

TONIGHT: Partly cloudy. Lows middle 50s inland valleys to middle 60s urban centers. Wind E to S up to 10 MPH.

SUNDAY: Partly to mostly sunny with most clouds south of Boston, most sun to the north. Highs middle 70s to lower 80s, coolest south-facing coastal areas. Wind S 5-15 MPH.

MONDAY-WEDNESDAY: Fair weather with increasing humidity day by day. Lows upper 50s to middle 60s. Highs upper 70s to upper 80s, coolest South Coast and Cape Cod.

THURSDAY: Partly sunny. Chance of a few PM showers and thunderstorms. Lows 63-70. Highs 82-92.

FRIDAY-SATURDAY: Partly cloudy. Lows in the 60s. Highs in the 80s.

7:41AM

Other than some high cloudiness at times through the weekend and a few other periods of clouds from a weak upper level disturbance early next week, high pressure will be in general control of the weather in southern New England well into next week with plenty of fair weather. The only notable trend will be an upward one in temperature and eventually humidity as well.

Updated forecast for southeastern New England…

TODAY: Mostly sunny. Highs 75-85, coolest in coastal areas. Wind W up to 10 MPH, except variable to onshore in coastal areas this afternoon.

TONIGHT: Mostly clear. Lows 55-65, coolest inland valleys, mildest in urban locations. Wind light SW.

SATURDAY THROUGH SUNDAY: Variable high cloudiness but not preventing plenty of sunshine during the daylight hours, just filtered at times, especially southern MA and RI. Highs 75-85, coolest Cape Cod & Islands. Lows 58-65. Winds variable 5-15 MPH.

MONDAY-TUESDAY: Partly cloudy. Lows 58-68. Highs 78-88.

WEDNESDAY-THURSDAY: Mostly sunny. Lows 60-70. Highs 81-91.

10:22PM

The Fall preview was evident strongly Wednesday with a cool, gusty breeze, crisp air, and sunshine with passing clouds, but that was the peak, and the last shot of such air for some time. Instead, the pattern we are now heading into is one of late Summer warmth and eventually a return to humidity (though the next few days will continue comfortably dry). The one bump in the road I see is the close-pass of low pressure south of New England sometime this weekend. Right now, I am optimistic that this low pressure area will stay far enough offshore to only toss some cloudiness into southern New England for a time and keep its rain away. Otherwise, the weather will be governed by high pressure for the rest of this week and probably much of next week.

Updated forecast for southeastern New England (southern NH, eastern MA, and RI)…

TONIGHT: Clear. Lows 46-58, coolest interior valleys, warmest urban centers. Wind W diminishing to under 10 MPH.

THURSDAY: Sunny. Highs 75-82. Wind W 5-15 MPH.

THURSDAY NIGHT: Clear. Lows 50-60, coolest interior valleys, mildest urban centers. Wind WSW under 10 MPH.

FRIDAY: Sunny. Highs 77-83. Wind WSW 5-15 MPH.

SATURDAY & SUNDAY: Partly cloudy (more clouds south at times). Lows 55-65. Highs 75-85, coolest South Coast.

MONDAY-WEDNESDAY: Fair weather, increasing humidity. Lows 60-70. Highs 80-90.

7:48PM

A cold front will march east southeast across southern New England during this evening into the overnight hours, pushing offshore by early Wednesday morning. There is one final band of showers and thunderstorms ahead of this front as of the time of the writing of this entry (about 7PM), but it is expected to move east southeast and eventually weaken and dissipate and never make it into southeastern New England save for a few possible showers (may not even see that). Storms or not, the cold front is going to clean house and bring another shot of cool/dry air to the region for the middle of the week. This appears, however, to be the last shot of such air for a while, and even though the comfortable air will be around for a few days, as we get toward the end of the coming weekend and into next week, it appears we will be heading into a more typical August pattern of warmer and more humid weather.

Updated forecast for southeastern New England (southern NH, eastern MA, RI)…

TONIGHT: Partly cloudy. Slight risk of a shower mainly well west of Boston through 1AM. Still humid early, drying out overnight. Lows drop to 55-60 inland but 60-65 at the coast. Wind W increasing to 5-15 MPH.

WEDNESDAY: Mixed sun & passing clouds. Dry air! Highs in the 70s. Wind W 10-20 MPH along with some higher gusts.

WEDNESDAY NIGHT: Clouds vanish, sky turns clear. Crisp & cool. Lows drop to around or just below 50 inland valleys, 50s elsewhere. Wind W to NW 5-15 MPH.

THURSDAY: Sunny. Highs 75-80. Wind W 5-15 MPH.

FRIDAY-SUNDAY: Mostly sunny. Lows 55-65. Highs 75-85.

MONDAY & TUESDAY: Mostly sunny. Lows 60-70. Highs 80-90.

7:00AM

High pressure and fair weather rule 6 out of 7 days this week, the exception being Tuesday with a cold front bringing showers and thunderstorms. One more shot of refreshing air comes midweek before a warmer/muggy late Summer pattern takes over.

TODAY: Mostly sunny. Highs 76-83. Wind W 5-15 MPH.

TONIGHT: Variably cloudy. Lows 60-66. Wind S 5-15 MPH.

TUESDAY: Mostly cloudy with episodes of showers and thunderstorms. Highs 75-83. Wind SW 10-20 MPH.

WEDNESDAY: Partly cloudy. Low 59. High 75.

THURSDAY: Mostly sunny. Low 54. High 78.

FRIDAY: Mostly sunny. Low 57. High 79.

SATURDAY: Mostly sunny. Low 61. High 81.

SUNDAY: Mostly sunny. Low 64. High 88.

3:36AM

The muggies have been pushed offshore by a cold front, and though the dry air is in, it will actually be warmer than yesterday in most of the region due to lots of sun and a westerly wind that dries and warms as it comes down off the mountains to the west. The air will cool a little bit by Sunday but still be quite mild, along with low humidity. High pressure will hang on during Monday which will be another excellent weather day. This nice stretch is also perfect timing for star gazers as the next 3 nights will offer an excellent view of the Perseid Meteor Shower, peaking Sunday night and early Monday morning (though Saturday night and Monday night will still be decent). The best viewing time will be from midnight to just before first light. If you are out there, try to get away from any light pollution and look high in the northeast sky. Perseid meteors radiate out from near the Omega Constellation “Cassiopeia” (looks like the letter W and is easy to find). They are also very fast-moving meteors and tend to leave thin but sometimes bright white or blue streaks. Optimal viewing conditions may offer up to 100 meteors per hour during the peak.

Looking ahead, a cold front will swing through on Tuesday with a brief return to humidity, showers, and thunderstorms, before another cooler, drier airmass comes in for the middle of next week.

Forecast for southeastern New England…

TODAY: Sunshine with passing clouds. Highs in the 80s. Wind W to NW 10-20 MPH with higher gusts.

TONIGHT: Mostly clear. Lows in the 60s, some upper 50s inland valleys. Wind W diminishing to around 10 MPH.

SUNDAY: Mostly sunny. Highs upper 70s to lower 80s, coolest coastal areas. Wind SW up to 10 MPH with coastal sea breezes.

MONDAY: Mostly sunny. Low 56. High 79.

TUESDAY: Variably cloudy. Showers/thunderstorms likely. Low 62. High 80.

WEDNESDAY: Partly cloudy. Low 55. High 75.

THURSDAY: Partly cloudy. Low 55. High 76.

FRIDAY: Partly cloudy. Low 57. High 77.

7:46AM

A slow-moving cold front running into tropical moisture will produce showers and thunderstorms today, some with heavy rain, as it moves west to east across southeastern New England. This front will accelerate offshore by early Saturday allowing for fair and warm weather with lowering humidity. Great weather will continue Sunday and Monday thanks to a high pressure area dominating the weather. The next shower and thunderstorm threat will be Tuesday when a disturbance is expected to cross there region. More great weather returns by the middle of next week as it looks now.

Forecast for southeastern New England…

TODAY: Mainly overcast with episodes of showers and thunderstorms, some with heavy rain. Muggy. Highs in the 70s. Wind S 5-15 MPH gusting to 25 MPH.

TONIGHT: Mostly cloudy. Additional scattered showers and thunderstorms possible. Muggy. Lows in the 60s. Wind SW 5-15 MPH.

SATURDAY: Clouds may linger SE MA otherwise partly to mostly sunny. Lowering humidity. Highs 85-90, cooler Cape Cod. Wind W 10-20 MPH gusting to 30 MPH.

SUNDAY: Mostly sunny. Low 62. High 82.

MONDAY: Mostly sunny. Low 59. High 81.

TUESDAY: Chance of showers/thunderstorms. Low 62. High 80.

WEDNESDAY & THURSDAY: Partly cloudy. Lows 50s. Highs 70s.

1:21AM

Humidity, showers, and thunderstorms will be the story through Friday night as a warm front moves north of the region today and a cold front crosses late Friday and early Saturday. Of the 2 days, Friday will see the most numerous showers and thunderstorms. Right now, I’m optimistic that the front will clear the region Saturday, with some lingering clouds in the morning for southern and eastern areas, but otherwise much nice weather for the remainder of the day and drier, comfortable weather for Sunday and early next week.

Updated forecast for southeastern New England…

TODAY: Mostly cloudy to partly sunny. Chance of showers and a slight chance of thunderstorms. More humid. Highs middle 70s to lower 80s, coolest South Coast. Wind SSW 10-15 MPH.

TONIGHT: Mostly cloudy. Patchy fog. Chance of showers. Humid. Lows in the 60s. Wind S 10-15 MPH.

FRIDAY: Mostly cloudy. Episodic showers and thunderstorms, some possibly heavy. Muggy. Highs in the 70s to near 80. Wind S 10-20 MPH.

SATURDAY: Clouds linger southern and eastern areas in the morning, otherwise partly cloudy to mostly sunny. Low 66. High 85.

SUNDAY: Mostly sunny. Low 61. High 81.

MONDAY: Partly cloudy. Low 57. High 77.

TUESDAY: Partly sunny. Low 55. High 76.

WEDNESDAY: Partly sunny. Low 56. High 79.

7:56PM

Before we get to the weather, for those who see this post in the 8PM hour Tuesday, the International Space Station will be visible as it passes nearly overhead from the SW sky to the ENE sky starting at 9:04PM. The HTV4 satellite will also appear in the NW sky slightly below the half way up point in the sky moving to the NE starting at 9:44PM. Should be clear enough to see both, though the ISS will be the highest up and most brilliant of the 2 passes.

Weatherwise, one more nice day Wednesday as high pressure hangs on but warm air starts to come in aloft, producing some high clouds. Then a slow-moving cold front takes from Thursday through Friday night to pass through the region, with episodes of showers and thunderstorms and a return to muggy air. This front gets offshore (hopefully) on Saturday, which should show improvement. A drier air mass comes in Sunday and lasts into early next week. There continues to be no hot weather in sight.

Updated forecast for southeastern New England (southern NH, eastern MA, RI)…

TONIGHT: Mostly clear. Lows from 50 inland valleys to 60 urban centers. Wind light variable.

WEDNESDAY: Sunshine becoming filtered at times by variable high cloudiness, then some increase in clouds late afternoon and evening. Highs around 80 but 70s coast. Wind SE to S 5-15 MPH.

WEDNESDAY NIGHT: Mostly cloudy. Showers possible toward dawn. Lows in the 60s. Wind S 5-15 MPH.

THURSDAY: Mostly cloudy. Scattered showers and thunderstorms. Highs 78-83. Wind S 10-20 MPH.

FRIDAY: Mostly cloudy. Numerous showers and thunderstorms. Low 66. High 80.

SATURDAY: Partly cloudy. Isolated showers and thunderstorms. Low 61. High 85.

SUNDAY: Mostly sunny. Low 59. High 81.

MONDAY: Partly cloudy. Low 54. High 78.

TUESDAY: Partly sunny. Low 58. High 79.

9:51PM

The week starts with a shot of refreshing air from Canada on a northwest wind behind a departing upper low and arriving surface high. The air moderates a little but remains comfortable through Tuesday. A warm front pushes eastward toward the region by Wednesday with more clouds and eventually a shower threat. We’ll be near a front on Thursday and Friday with warm/humid air just to the south. It’s hard to say how strong the push of this will be into the region at this point but going to lean for a stronger push of it, along with a shower and thunderstorm threat due to the closeness of the front. Looking into next weekend, low pressure in eastern Canada and high pressure over the east central US combine to send a warm westerly flow across the region.

Forecast for southeastern New England (southern NH, eastern MA, and RI)…

TONIGHT: Mostly clear. Lows in the 50s. Wind NW 5-15 MPH.

MONDAY: Sunny to partly cloudy. Highs 72-77. Wind NW 10-20 MPH.

MONDAY NIGHT: Partly cloudy to mostly clear. Lows 48-53 inland, 53-58 coast. Wind light variable.

TUESDAY: Mostly sunny. Highs 75-80, cooler some coastal areas. Wind variable to SE 5-15 MPH.

WEDNESDAY: Variably cloudy. Chance of showers. Low 59. High 79.

THURSDAY: Partly sunny. Chance of showers and thunderstorms. Low 66. High 86.

FRIDAY: Partly cloudy. Chance of showers and thunderstorms. Low 68. High 88.

SATURDAY: Partly cloudy. Low 61. High 84.

SUNDAY: Mostly sunny. Low 64. High 86.