From the WABI & TV5 Forecast Center:
The cold front that moved south across Maine today will continue to slide south of New England tonight. A northerly breeze on the backside of the front will continue to draw a much cooler and less humid airmass into our region tonight and tomorrow. High pressure building south from near southern Hudson Bay will bring mostly clear skies to Maine tonight and that will allow temps to dip into the mid 40s to low 50s in our region by daybreak tomorrow. As the high slowly drifts southeast tomorrow it will bring mostly sunny skies to Maine, with temps climbing into the low to mid 70s from north to south in our area.
The Holiday weekend looks very pleasant as the ridge of high pressure just northwest of Maine tomorrow builds just to the south of New England as the holiday weekend moves along. A southwest breeze on the backside of the high will once again pull a warmer and somewhat more humid airmass into Maine as we head through the holiday weekend. High temps Saturday will climb up into the upper 70s to low 80s, but then continue to warm Sunday and Labor Day, with temps Sunday in the low to mid 80s and even a few degrees warmer on Labor Day.
High pressure will continue to control the weather in our area Tuesday and likely Wednesday as it remains anchored off the Mid-Atlantic Coastline. A southwest breeze on the backside of the high will continue to draw warm and humid air into our region as we head through the middle of the workweek. An approaching cold front will bring an increased risk of scattered showers and thundershowers to Maine later Wednesday and Thursday, with somewhat cooler and less humid air arriving in New England for the end of the workweek.
Tonight: Becoming mostly clear and less humid, with low temps in the 40s to low 50s.
Friday: Mostly sunny and cooler, with high temps in the low to mid 70s from north to south.
Friday night: Clear and cool, with low temps in the 40s to low 50s.
Saturday: Mostly sunny and warmer, with high temps in the upper 70s to low 80s.
Sunday: Mostly sunny, warm and a bit more humid, with high temps in the upper 70s to mid 80s.
Labor Day: Partly to mostly sunny, very warm and humid, with high temps in the 80s.
Tuesday: Partly sunny, warm and muggy, with high temps in the 80s.
Wednesday: Partly sunny and sticky, with possible scattered showers and thundershowers and high temps in the upper 70s to mid 80s.
WABI-TV5 & CW Meteorologist