2:28AM
DAYS 1-5 (MAY 16-20)…
A windy and cool Monday as the pressure gradient between a deepening low in eastern Canada and high pressure to the west remains fairly strong. Cold air aloft will still allow for some cloud development, though there will also be sunshine. A very chilly night is upcoming but I believe the wind may stay active enough and the air dry enough to prevent frost in all but the most sheltered valley locations. A wave of low pressure will pass south of the region early Wednesday, and will bring at least some cloudiness into the region later Tuesday into Wednesday, and perhaps a period of rain, which will favor southern MA southward. High pressure builds in later in the week with fabulous spring weather.
TODAY: Sun/cloud mix. Highs upper 50s to lower 60s. Wind W 15-25 MPH with higher gusts.
TONIGHT: Clearing. Areas of frost possible in deepest valleys. Lows middle 30s to lower 40s. Wind W 5-15 MPH with higher gusts.
TUESDAY: Sun followed by clouds. Highs in the 60s. Wind W 10-20 MPH with a few higher gusts.
TUESDAY NIGHT: Mostly cloudy. Chance of rain overnight mainly southern MA southward. Lows upper 40s to lower 50s. Wind W under 10 MPH.
WEDNESDAY: Mostly cloudy start with a chance of rain mainly southeastern MA and RI in the morning. Clearing trend midday and afternoon. Highs in the 60s. Wind W to variable 5-15 MPH.
THURSDAY: Mostly sunny. Lows upper 40s to middle 50s. Highs upper 60s to middle 70s.
FRIDAY: Mostly sunny. Lows in the 50s. Highs in the 70s.
DAYS 6-10 (MAY 21-25)…
The weekend of May 21-22 will be dry and fairly warm, though there is a slight risk that a weak trough from the north may shift the wind onshore on May 22 for somewhat cooler air in eastern coastal areas. Watching a possible upper low to the south May 23-24 that would bring some wet weather at some point if it got close enough. Fair and warmer weather should be back by the end of the period.
DAYS 11-15 (MAY 26-30)…
Fair weather is expected for most of this period, though there may be a few showers and thunderstorms at some point around the May 28-29 period, which is part of the Memorial Day Weekend. There is a long way to go to fine-tune this forecast as that weekend approaches.