The 10-day span for Cornwall runs from a high near 83° on Thursday down to 58° overnight on Tuesday. About 5.5 in of precipitation is expected in total; the most likely wet day is Wednesday (91% chance). Hold onto the patio furniture Thursday: gusts could hit 27 mph. No watches or warnings are active for the area right now. Right now Cornwall is about 13° cooler than nearby Washington. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Cornwall, PA · Elev 620 ft · 40.27°N, 76.41°W · Pennsylvania · Forecast computed for these exact coordinates