Over the next 10 days Portsmouth tops out around 85° (Friday) and dips to 48° on the coolest night (Thursday). About 1.6 in of precipitation is expected in total; the most likely wet day is Thursday (93% chance). Expect a blustery spell — gusts near 38 mph on Friday. No active NWS alerts at the moment — quiet on the hazards front. Right now Portsmouth is about 7° cooler than nearby Sherbrooke. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Portsmouth, NH · Elev 20 ft · 43.08°N, 70.76°W · New Hampshire · Forecast computed for these exact coordinates