Allentown, PA Weather - Tomorrow’s Forecast

Wednesday

Mostly sunny

High:
99°F

A slight chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 103. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night

Chance of thunderstorms

Overnight low:
71°F

A chance of showers and thunderstorms, mainly between 7pm and 8pm. Partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.