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 >

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Clear

70°F

21°C

Humidity 78%
Wind Speed N 5 mph
Barometer 30.08 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 9:45 pm EDT
Extended Forecast for

Denville NJ

  • Tonight

    Tonight: Clear, with a low around 57. North wind 5 to 10 mph.

    Low: 57 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80. North wind around 5 mph becoming calm in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 59. Calm wind.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers after 2pm. Mostly sunny, with a high near 83. Light west wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 57. North wind 5 to 10 mph.
Saturday
Sunny, with a high near 80. North wind around 5 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 59. Calm wind.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Light west wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 20%.
Monday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denville NJ
 40.88°N 74.48°W (Elev. 574 ft)
Last Update:
6:58 pm EDT Aug 28, 2026
Forecast Valid:
10pm EDT Aug 28, 2026-6pm EDT Sep 4, 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