Mercerville's outlook: warmest day near 32° (Tuesday), coldest night about 14° (Monday). Models drop roughly 3.5 in of precipitation across the stretch — watch Wednesday (94%). Hold onto the patio furniture Tuesday: gusts could hit 28 mph. The NWS alert board for this area is currently clear. Right now Mercerville is running about 51° warmer than Allentown. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Mercerville, NJ · Elev 89 ft · 40.24°N, 74.69°W · New Jersey · Forecast computed for these exact coordinates