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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Light Rain

68°F

20°C

Humidity 93%
Wind Speed E 7 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 66°F (19°C)
Visibility 9.00 mi
Last update 28 Aug 12:51 am EDT
Extended Forecast for

Stewartsville NJ

Flood Watch August 28, 01:06am until August 28, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 28, 01:06am until August 28, 04:00am

    NOW until 4:00am Fri

    Flood Watch

  • Overnight

    Low: 66 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. 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: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind.

    High: 82 °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 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. 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.
Saturday
Sunny, with a high near 82. Calm wind.
Saturday Night
Mostly clear, with a low around 61. Calm wind.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 86.
Monday Night
Mostly cloudy, with a low around 69.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Stewartsville NJ
 40.68°N 75.1°W (Elev. 305 ft)
Last Update:
4:08 pm EDT Aug 27, 2026
Forecast Valid:
1am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
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