7:47PM original
7:26AM Wednesday update to remove time-periods already occurred and tweak forecast slightly (no major changes)
Wednesday: A wave of low pressure riding up a stationary front will produce plenty of showers around the region through early afternoon. A break in the shower activity is expected for mid to late afternoon, but another frontal system approaching from the west may set off a shower or thunderstorm in some areas by Wednesday evening. This activity may be heavier well to the west but should start to weaken as it enters the eastern MA, southern NH, and RI forecast area.
Thursday through Monday: 5 fantastic days as high pressure dominates. It seems pretty certain that a storm system offshore by Sunday-Monday will not have an impact.
Tuesday: Shower threat returns as a system moves in from the west.
Updated forecast for eastern MA, RI, and southern NH…
WEDNESDAY: Mostly cloudy. Scattered showers and possibly a few thunderstorms in the morning to early afternoon, a few isolated showers mid to late afternoon. Highs ranging from the lower 60s south-facing coastal areas to lower 70s most inland locations. Wind S 10-15 MPH gusting around or over 20 MPH.
WEDNESDAY NIGHT: Mostly cloudy with a chance of a shower or thunderstorm early (before 9:30pm) then becoming partly cloudy. Low 51-56. Wind shifting to W 10-20 MPH and gusty.
THURSDAY: Mostly sunny. High 68-73. Wind W 10-20 MPH.
FRIDAY: Sunny. Low 55. High 75.
SATURDAY: Sunny. Low 56. High 77, cooler coast.
SUNDAY: Sunny. Low 57. High 78, cooler coast.
MONDAY: Mostly sunny. Low 57. High 74.
TUESDAY: Mostly cloudy. Chance of showers. Low 55. High 66.