DAYS 1-5 (APRIL 26-30)
No big changes from yesterday’s discussion as we head through the final 5 days of April 2024. High pressure keeps the weather fair through Saturday. Dry air and light wind allows coastal sea breezes, though the gradient wind will start to turn more southeasterly as we get to Saturday anyway with high pressure offshore and a warm front approaching from the west later on. For today and Saturday it’s abundant sun during the day and clear tonight. Clouds thicken up Saturday evening and there may be a touch of rain later at night as the warm front moves into the region. Sunday will feature lots of clouds as that warm front moves beyond the region and a weak trough approaches from the west, with a shower threat mainly morning to midday. Sunday afternoon should break out enough to be quite nice, and rather mild, but any south-facing coastal areas will be cooler due to a southwesterly wind that day. Monday’s forecast continues to have an element of complexity – a back-door cold front, typical of springtime here. This simple feature can help set up a large temperature contrast across the region, and I think that will happen. The question to answer still is how far inland/southwest does that boundary get. Fine-tuning coming up for that. Weather-wise I do think the day Monday is dry other than the slight chance of inland pop up showers mainly in the afternoon with the combination of sun’s heating, slightly less stable air, and the frontal boundary in the area. A low pressure trough and frontal system from the west will bring unsettled weather to our region in the form of rain showers for the final day of April on Tuesday.
TODAY: Sunny. Highs 55-62, coolest coast. Wind variable up to 10 MPH with developing coastal sea breezes.
TONIGHT: Clear. Lows 33-40. Wind variable under 10 MPH.
SATURDAY: Sunniest through midday, then increasing high cloudiness. Highs 56-63 coast, 63-70 inland. Wind SE to S up to 10 MPH.
SATURDAY NIGHT: Cloudy. A period of light rain possible overnight. Lows 47-54. Wind SE to S up to 10 MPH.
SUNDAY: Mostly cloudy with a chance of rain showers through midday, then partly sunny. Highs 63-70 except cooler South Coast. Wind SW 5-15 MPH.
SUNDAY NIGHT: Variably cloudy. Lows 48-55. Wind SW up to 10 MPH.
MONDAY: Partly sunny. Isolated afternoon showers possible well inland. Highs 65-72 except 58-65 Boston area northward occurring by midday, with potentially falling temperatures midday on, especially Boston area north. Wind variable up to 10 MPH, but may turn NE 5-15 MPH in southern NH and eastern MA.
MONDAY NIGHT: Mostly cloudy. Lows 43-50. Wind NE-E 5-15 MPH.
TUESDAY: Cloudy. Rain showers likely. Highs 53-60, coolest coast. Wind SE-S 5-15 MPH.
DAYS 6-10 (MAY 1-5)
A trough brings a shower chance about May 2 otherwise a dry start to May with somewhat variable but mostly near normal temperatures expected.
DAYS 11-15 (MAY 6-10)
Generally dry pattern with a couple minor systems to threaten brief unsettled weather. Overall northwest to north flow should result in temperatures near to slightly below normal.