National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Fair

28°C

82°F

Humidity 47%
Wind Speed W 20 G 39 km/h
Barometer 1014.1 mb (29.96 in)
Dewpoint 16°C (60°F)
Visibility 16 km
Heat Index28°C (82°F)
Last update 20 Jun 3:51 pm EDT
Extended Forecast for

Fullerton PA

Extreme Heat Watch June 22, 08:00am until June 25, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Isolated showers and thunderstorms before 7pm. Partly cloudy, with a low around 18. West wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight. Chance of precipitation is 20%.

    Low: 18 °C

    Isolated
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Southwest wind 5 to 15 km/h. Chance of precipitation is 20%.

    High: 31 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21. Southwest wind 5 to 10 km/h.

    Low: 21 °C

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 34. Heat index values as high as 39. West wind 10 to 15 km/h.

    High: 34 °C

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 23. West wind 5 to 10 km/h.

    Low: 23 °C

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 37.

    High: 37 °C

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 24.

    Low: 24 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 37.

    High: 37 °C

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23.

    Low: 23 °C

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 7pm. Partly cloudy, with a low around 18. West wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Southwest wind 5 to 15 km/h. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 21. Southwest wind 5 to 10 km/h.
Sunday
Mostly sunny, with a high near 34. Heat index values as high as 39. West wind 10 to 15 km/h.
Sunday Night
Mostly clear, with a low around 23. West wind 5 to 10 km/h.
Monday
Sunny and hot, with a high near 37.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Sunny and hot, with a high near 37.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 34. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 21. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 32. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 31. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton PA
 40.64°N 75.49°W (Elev. 358 m)
Last Update:
4:11 pm EDT Jun 20, 2025
Forecast Valid:
4pm EDT Jun 20, 2025-6pm EDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation