Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Partly Cloudy

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.81 in (1009.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 23 Aug 4:51 am EDT
Extended Forecast for

Allentown PA

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Cloudy, with a low around 66. Southeast wind around 5 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 9am.  Cloudy, then gradually becoming mostly sunny, with a high near 80. West wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 58. West wind around 5 mph.

    Low: 58 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 76. West wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West wind around 5 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 80. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Clear, with a low around 58. West wind around 5 mph.
Monday
Mostly sunny, with a high near 76. West wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 58. West wind around 5 mph.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Allentown PA
 40.6°N 75.5°W (Elev. 299 ft)
4:08 am EDT Aug 23, 2026
5am EDT Aug 23, 2026-6pm EDT Aug 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database