The 10-day span for Coopersburg runs from a high near 91° on Thursday down to 57° overnight on Sunday. Models drop roughly 1.6 in of precipitation across the stretch — watch Wednesday (94%). Expect a blustery spell — gusts near 28 mph on Saturday. The NWS alert board for this area is currently clear. Right now Coopersburg is about 12° cooler than nearby Washington. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Coopersburg, PA · Elev 469 ft · 40.51°N, 75.39°W · Pennsylvania · Forecast computed for these exact coordinates