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

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Mostly Cloudy

72°F

22°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 30.04 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 27 Aug 11:45 am EDT
Extended Forecast for

Cedar Knolls NJ

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

    NOW until 4:00am Fri

    Flood Watch

  • This Afternoon

    High: 82 °F

    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 67. Calm wind.  Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms after 3pm.  Patchy fog before 7am.  Otherwise, partly sunny, with a high near 83. Calm wind.  Chance of precipitation is 20%.

    High: 83 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 82. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms before 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers and thunderstorms after 3pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 83. Calm wind. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A chance of showers after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly 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 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Cedar Knolls NJ
 40.81°N 74.46°W (Elev. 299 ft)
4:09 am EDT Aug 27, 2026
12pm EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

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