From the WABI-TV5 & CW Forecast Center:
A slow moving cold front will drift east through New England today. The front will interact with the very tropical aimass sitting on top of our region to bring on and off showers and thundershowers to Maine throughout the day. The front will gradually push offshore later today and early tonight and the wind will kick around into the north and northwest which will allow a less humid airmass to begin to filter into our region. At the same time the front is pushing offshore Hurricane Arthur will be moving northeast off the Mid-Atlantic Coastline. Moisture pushing north ahead of the hurricane will likely bring a period of heavy rain to especially eastern parts of Maine tonight and Saturday morning as the hurricane slides up to our east and moves into Nova Scotia. The exact track of the storm will determine how much rain and wind Maine sees from the hurricane, with eastern parts of the state likely picking up 1 to 4″ of rain tonight and Saturday morning, with lesser amounts being found west of the Bangor region. The expected current track would keep the very strong near hurricane winds well offshore tonight and Saturday morning, but a track closer to the New England coastline than is currently projected would bring some of the storm’s stronger winds into eastern Maine. The track of the storm will bring large swells and very dangerous rip currents to our coastline Saturday, so it is best to stay out of the ocean. Once again the expected heavy rain could lead to localized flooding over eastern parts of the state as we begin the weekend.
Cooler, drier and less humid air will filter into Maine on a northwest breeze once the hurricane moves off to our northeast later in the day Saturday. High pressure approaching the Northeast from the west will bring partly to mostly sunny skies and pleasant temps to all of New England Sunday. A southwest breeze on Monday will allow the humid air to begin to push back into Maine during the day and an approaching cold front could kick off a few showers towards evening.
Today: Mostly cloudy and muggy, with showers and storms likely, with high temps in the 70s to near 80.
Saturday: Blustery, with morning rain east then becoming partly sunny later in the day, with high temps in the 70s to near 80.
Sunday: Mostly to partly sunny, with high temps in the mid 70s to low 80s.
Monday: Partly sunny and more humid, with possible scattered late day showers and storms, with high temps in the upper 70s to mid 80s.
Tuesday: Variably cloudy and muggy, with scattered showers and storms, with high temps in the mid 70s to low 80s.
WABI-TV5 & CW Meteorologist