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

Briefing for Flash Flood and Severe Storm Risks through Tonight

Potentially significant flash flooding is possible this afternoon into tonight. Some isolated severe thunderstorms are also possible. See this briefing for details on these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Overcast

68°F

20°C

Humidity 94%
Wind Speed NE 8 G 14 mph
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 31 Jul 6:45 pm EDT
Extended Forecast for

Morristown NJ

Flood Watch July 31, 07:08pm until August 1, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 31, 07:08pm until August 1, 12:00am

    NOW until 12:00am Fri

    Flood Watch

  • Tonight

    Low: 62 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Friday

    Friday: A chance of showers before 10am, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 75. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. North wind around 5 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. North wind around 5 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Low around 62. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers before 10am, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 75. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly clear, with a low around 59. North wind around 5 mph.
Saturday
Sunny, with a high near 80. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 59. Calm wind.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Mostly cloudy, with a low around 66.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Morristown NJ
 40.79°N 74.47°W (Elev. 351 ft)
Last Update:
6:51 pm EDT Jul 31, 2025
Forecast Valid:
7pm EDT Jul 31, 2025-6pm EDT Aug 7, 2025
 
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