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

Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Light Rain Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 68°F (20°C)
Visibility 4.00 mi
Last update 20 Sep 6:45 pm EDT
Extended Forecast for

Denville NJ

  • Tonight

    Tonight: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 68. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: Showers likely, mainly after 4am. Cloudy, with a low around 50. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before 8am. Cloudy, with a high near 61. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. Northeast wind around 10 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 20%.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 68. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Showers likely, mainly after 4am. Cloudy, with a low around 50. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers likely, mainly before 8am. Cloudy, with a high near 61. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 48. Northeast wind around 10 mph.
Wednesday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
Partly sunny, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 70.
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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:
6:15 pm EDT Sep 20, 2026
Forecast Valid:
7pm EDT Sep 20, 2026-6pm EDT Sep 27, 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