Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Fair

77°F

25°C

Humidity 88%
Wind Speed SE 3 mph
Barometer 29.83 in (1009.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Aug 8:51 pm EDT
Extended Forecast for

3 Miles NNE Belfast PA

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Calm wind becoming north around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84. North wind around 5 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 81. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am.  Partly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. Calm wind becoming north around 5 mph.
Tuesday
Sunny, with a high near 84. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 61. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers after 2am. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Belfast PA
 40.81°N 75.25°W (Elev. 600 ft)
4:08 pm EDT Aug 17, 2026
9pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database