Over the next 10 days Portland tops out around 79° (Tuesday) and dips to 55° on the coolest night (Wednesday). About 0.85 in of precipitation is expected in total; the most likely wet day is Wednesday (89% chance). Expect a blustery spell — gusts near 37 mph on Thursday. The NWS alert board for this area is currently clear. Right now Portland is running about 22° warmer than Sherbrooke. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Portland, ME · Elev 62 ft · 43.66°N, 70.26°W · Maine · Forecast computed for these exact coordinates