DAYS 1-5 (MAY 7-11)

A wave of low pressure on a front is resulting in a wet start to the day over the southeastern corner of CT, across much of RI, and southeastern MA, but as this low pressure wave moves by, the front will be pulled offshore and these areas will dry out from west to east by late morning – rain lastly exiting Nantucket and Outer Cape Cod. A clearing trend works in from the west – blue sky is already visible to the west and northwest early this morning if you are in the I-95 belt westward. Some fair weather clouds can pop up this afternoon but after the rain exits southeastern areas we’re looking at a dry, breezy, and cooler day. Tonight’s fair and cool. Friday’s weather is generally nice but a cold pool of air aloft serves to provide some instability so diurnal clouds pop up again, and I cannot rule out a couple of isolated showers too. Saturday, a wave of low pressure associated with an upper trough will move quickly toward and into our region, with a period of rain from midday into Saturday night. This arrives from the southwest, so areas to the south and west of Boston will see rain earlier, while the NH Seacoast is the last to see the rain arrive and holds onto dry weather longest on Saturday. After this system exits, we look for a mostly fair and milder day Sunday, but again with some lingering cold air aloft I cannot rule out a pop-up shower or two in a few locations. Yet another wave of low pressure heads our way from the southwest late this weekend so you’ll see an increase in high cloudiness later Sunday which thicken and lower Sunday night leading to a rather overcast and wet day on Monday, as it looks right now. We do need rain to help with long term dryness / drought, so in that regard the more unsettled pattern is positive news.

TODAY: Rain ends southeastern areas this morning with a clearing trend from west to east into midday. Sun / cloud mix afternoon. Highs 60-67. Wind variable becoming N 5-15 MPH with higher gusts.

TONIGHT: Mostly clear. Lows 43-50. Wind N to NW 5-15 MPH.

FRIDAY: Sunny to partly cloudy. Highs 58-65. Wind NW 5-15 MPH, higher gusts.

FRIDAY NIGHT: A few clouds early evening, clear late evening, then increasing high clouds overnight. Lows 38-45. Wind variable up to 10 MPH.

SATURDAY: Overcast thickens. Rain arrives southwest to northeast mid morning through early afternoon, continuing thereafter. Highs 57-64. Wind variable up to 10 MPH.

SATURDAY NIGHT: Mostly cloudy with a chance of rain early, then clearing. Patchy fog. Lows 47-54. Wind variable to SW up to 10 MPH.

SUNDAY: Partly sunny. A pop-up shower possible. Highs 66-73 except cooler South Coast / Cape Cod. Wind SW 5-15 MPH.

SUNDAY NIGHT: Increasing clouds. Lows 48-55. Wind S to SE up to 10 MPH.

MONDAY: Cloudy. Rain likely. Highs 55-62, coolest coast. Wind E 5-15 MPH.

DAYS 6-10 (MAY 12-16)

Early period fair weather, later period unsettled weather as a blocking pattern sends a trough into the Northeast. Temperatures milder at first, then a cooling trend follows.

DAYS 11-15 (MAY 17-21)

Unsettled weather early period followed by later period fair weather as a blocking pattern shifts slightly. Temperatures start out below normal then to seasonably milder.