Harleysville's outlook: warmest day near 81° (Friday), coldest night about 57° (Tuesday). Roughly 2.6 in of rain falls over the period, with Saturday the most likely wet day (94%). Wind is the one to watch: gusts to 26 mph around Sunday. No active NWS alerts at the moment — quiet on the hazards front. Right now Harleysville is running about 17° warmer than Allentown. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Harleysville, PA · Elev 259 ft · 40.28°N, 75.39°W · Pennsylvania · Forecast computed for these exact coordinates