Severe Storm and Dangerous Heat Risks through Friday

Severe thunderstorms are possible each afternoon and evening through Friday. Additionally, dangerous heat and humidity is expected for portions of the area Thursday through Friday. View this briefing for details. Read More >

7-Day Forecast 40.62°N 75.5°W (Text-Only)
NWS Forecast for: Allentown PA
Issued by: National Weather Service Philadelphia, PA
Last Update: 4:10 pm EDT Jun 10, 2026




Tonight: A chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 93. Heat index values as high as 100. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 69. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 94. Heat index values as high as 101. West wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Northwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday: Sunny, with a high near 88.

Saturday Night: Clear, with a low around 64.

Sunday: Mostly sunny, with a high near 92.

Sunday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

Monday: A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

Monday Night: A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

Tuesday: A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 50%.

Tuesday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

Wednesday: A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.



Allentown PA
 40.62°N 75.5°W (Elev. 328 ft)

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