1:20AM
DAYS 1-5 (MAY 17-21)
A few adjustments in this update, mainly to slow timing of systems and increase the temperature forecast a little bit for Sunday. The basic idea is the same with high pressure in control of the weather, but a warm front will pass through the region early Wednesday and introduces air that is more like early to mid summer for Wednesday and Thursday, and a cold front will pass through the region on Friday, cooling it down somewhat for the start of the weekend. It may rebound on Sunday but there is still a question of a potential front in the vicinity that could result in a larger temperature contrast. That type of even is hard to pinpoint more than a couple days in advance, so will keep an eye on it as it gets closer. The only real risk of any rain would be an isolated shower or thunderstorm with Friday’s cold front.
TODAY: Clouds in eastern areas early, then sun dominates. Highs 60-68 Nantucket and Martha’s Vineyard, 68-76 South Coast, 76-85 elsewhere except 85-90 north central MA and interior northeastern MA and adjacent southern NH. Wind SW 5-15 MPH with higher gusts.
TONIGHT: Mostly clear. Lows 60-68. Wind SW 5-15 MPH.
THURSDAY: Mostly sunny to partly cloudy. More humid. Highs 75-83 South Coast except cooler islands, 84-93 elsewhere. Wind SW 10-20 MPH, higher gusts.
THURSDAY NIGHT: Partly cloudy. Humid. Lows 62-70. Wind SW 5-15 MPH.
FRIDAY: Partly sunny. Isolated to scattered showers/thunderstorms mainly morning to early afternoon. Humid then drier later in the day. Highs 70-77 South Coast, 78-85 elsewhere. Wind SW to W 10-20 MPH.
SATURDAY: Mostly sunny. Lows 52-60. Highs 66-73, coolest coastal areas.
SUNDAY: Partly cloudy. Lows 48-55, coolest interior valleys. Highs 66-82, coolest eastern coastal areas.
DAYS 6-10 (MAY 22-26)
Look for mild but showery weather during the first few days of this period then a cooler trend with drier weather or limited shower activity later in the period.
DAYS 11-15 (MAY 27-31)
A low pressure trough may be passing through around the Memorial Day Weekend with the risk of at least some unsettled weather. It’s too early to know for sure what the magnitude and impact would be. Assuming this system was around at the start of the period drier weather would likely follow for the last couple days of the month. Fine-tuning to come in the days ahead.