From the WABI-TV5 & CW Forecast Center:
A ridge of high pressure currently centered in the Ohio River Valley will continue to control the conditions across Maine Saturday as it slides eastward. A disturbance aloft swinging across Southeastern Canada might kick off a few widely scattered showers or storms tonight and tomorrow, mostly across far northern parts of Maine, but otherwise the weather should be fair and pleasant. Clouds will begin to gradually build into New England later Saturday afternoon or evening as the high slips off to our southeast. High temps Saturday will range from the upper 70s to the low 80s all across the Pine Tree State.
As the high continues to slide off to the east of New England Sunday morning a storm system moving east through the Great Lakes Region will push a warm front towards Maine. The warm front will cause skies to average mostly cloudy Sunday, with showers and thundershowers likely developing. A storm in the upper levels of the atmosphere will stall across the Eastern U.S. as we begin the workweek and that will lead to rather unsettled condition in our region Monday, Tuesday and Wednesday. A southerly breeze aloft will allow humidity levels to remain rather high later Sunday and Monday and that along with the upper level trough will cause on and off showers to fall all across Maine. The combination of mostly cloudy skies and occasional showers will hold temps a bit below normal Sunday through Tuesday. Showers will become less numerous and skies will turn partly sunny later in the workweek as the upper low over the Northeast weakens and high pressure approaches New England from the west.
Tonight: Partly to mostly clear and comfortable, with low temps in the 50s.
Saturday: Partly sunny, with high temps in the upper 70s to low 80s.
Sunday: Partly to mostly cloudy and becoming more humid, with scattered showers and storms and high temps in the 70s.
Monday: More clouds than sun and humid, with scattered showers likely and high temps in the 70s to near 80.
Tuesday: Variably cloudy, with scattered showers likely and high temps in the 70s to near 80.
Wednesday: Partly cloudy, with widely scattered showers possible and high temps in the mid 70s to near 80.
WABI-TV5 & CW Meteorologist
There are no active watches, warnings or advisories ...