From the TV 5 Forecast Center:
Sunshine returns to our forecast today as high pressure builds into the area. After a cool start to the day, temperatures will warm nicely with highs reaching the 70s to near 80° this afternoon under mostly sunny skies. Clouds will be on the increase tonight as our next storm system approaches New England. With clouds moving in, temperatures will be a bit milder tonight with lows in the low to mid-50s in most locales.
A warm front is forecast to approach the area Thursday bringing us clouds and numerous showers. High pressure will be to our east and hanging on to the area as well. With high pressure still in the vicinity, it will help to keep the bulk of the showers over areas north and west of Bangor with a lesser chance for showers around Bangor and Downeast. The combination of clouds and showers in the area Thursday will keep temperatures a bit cooler with highs in the 60s during the day. Steadier, more widespread rain is expected on Friday as the warm front lifts north and east through the state. Rain will begin to taper off Friday night as a cold front crosses the state. The cold front is expected to move east of Maine late Friday night/early Saturday morning. We may still see a few lingering showers over eastern areas early Saturday otherwise as the front moves away, we’ll see brightening skies Saturday with highs topping off in the 70s. A ridge of high pressure will move in on Sunday giving us a beautiful day with sunshine and highs near 80°.
Rest of Today: partly to mostly sunny and pleasant. Highs between 70°-80°, coolest along the coast. Light winds will become south 5-10 MPH.
Tonight: increasing clouds. Scattered showers possible after midnight, mainly for western and northwestern areas. Lows between 49°-55°. Light south wind.
Thursday: mostly cloudy with scattered showers, mainly north and west of Bangor. Highs in the 60s. Southeast wind 5-15 MPH.
Friday: periods of rain. Highs in the upper 50s to mid-60s.
Saturday: a few morning showers possible especially over eastern areas then clearing skies. Highs in the 70s.
Sunday: mostly sunny with highs in the mid-70s to low 80s.
WABI TV 5 & The CW