Weather World
City of Allentown, PAAllentown, PA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Allentown, PA Weather Forecast
Allentown, PA Weather Forecast Date: 449 PM EDT Tue Sep 01 2026
The area/counties/county of: Lehigh, including the city of Allentown.or toggle through each period.
Tonight... Mostly cloudy. Numerous showers and thunderstorms this evening. Some thunderstorms May be severe with damaging winds and heavy rainfall. Lows in the upper 60s. Northwest winds around 5 mph, becoming northeast after midnight. Chance of rain 60%.
Wednesday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Not as warm. Humid with highs in the mid 70s. East winds around 5 mph. Chance of rain 40%.
Wednesday Night... Showers likely with a chance of thunderstorms. Humid with lows in the upper 60s. Southeast winds around 5 mph. Chance of rain 70%.
Thursday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Warmer with highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 50%.
Thursday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Humid with lows in the upper 60s. West winds around 5 mph. Chance of rain 50%.
Friday... Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30%.
Friday Night... Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows around 60. Chance of rain 30%.
Saturday... Sunny. Highs in the upper 70s.
Saturday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 50s.
Sunday... Sunny. Highs in the mid 70s.
Sunday Night... Mostly clear. Lows in the upper 50s.
Labor Day... Mostly sunny. Highs in the upper 70s.
Monday Night... Partly cloudy. Lows in the upper 50s.
POP = Probability of Precipitation
Allentown Radar Loop
Use the map search tool if you want to place a location marker on the radar map...