| National Weather Service Forecast for:
Allentown PA Issued by: National Weather Service Philadelphia, PA |
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| Updated: 4:08 am EDT Jun 30, 2026 | ||||||||||||||||||
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| Today |
Mostly sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning. |
| Tonight |
Partly cloudy, with a low around 69. Southwest wind 5 to 10 mph. |
| Wednesday |
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. |
| Wednesday Night |
Mostly clear, with a low around 75. Southwest wind around 5 mph becoming calm after midnight. |
| Thursday |
Sunny and hot, with a high near 101. Calm wind becoming west around 5 mph in the afternoon. |
| Thursday Night |
Clear, with a low around 77. |
| Friday |
Sunny and hot, with a high near 101. |
| Friday Night |
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%. |
| Independence Day |
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%. |
| Saturday Night |
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%. |
| Sunday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 30%. |
| Sunday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%. |
| Monday |
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%. |
Forecast from NOAA-NWS for Allentown PA.
