Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Overcast

74°F

23°C

Humidity 74%
Wind Speed SE 9 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 27 Aug 5:51 pm EDT
Extended Forecast for

3 Miles NNW Stewartsville NJ

Flood Watch until August 28, 04:00am
Severe T-storm Watch August 27, 06:22pm until August 27, 08:00pm
Flash Flood Warning until August 27, 08:45pm
Click here for hazard details and duration
Flood Watch
...
...
  •  
    Flood Watch until August 28, 04:00am
    Severe T-storm Watch August 27, 06:22pm until August 27, 08:00pm
    Flash Flood Warning until August 27, 08:45pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 65 °F

    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 81. Calm wind.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. North wind around 5 mph becoming calm.

    High: 79 °F

    Sunny

  • Saturday Night

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

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms, mainly before 1am. Low around 65. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 81. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight.
Saturday
Sunny, with a high near 79. North wind around 5 mph becoming calm.
Saturday Night
Mostly clear, with a low around 61. Calm wind.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Partly sunny, with a high near 83.
Monday Night
A chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Stewartsville NJ
 40.73°N 75.12°W (Elev. 997 ft)
4:08 pm EDT Aug 27, 2026
6pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
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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