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Severe Thunderstorms and Heat Impact July 4th Weekend

A threat for severe thunderstorms will impact the July 4th weekend, bringing the potential for damaging wind gusts and localized flash flooding through Sunday. Hazardous heat continues into Sunday as well. Read More >

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Rain

73°F

23°C

Humidity 94%
Wind Speed S 6 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 4 Jul 11:35 pm EDT
Extended Forecast for

Morristown NJ

Heat Advisory July 5, 08:00am until July 5, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Showers likely, mainly before 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 70 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Partly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 11pm, then showers and possibly a thunderstorm, mainly after 11pm. Low around 67. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 74. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 74 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 63. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly before 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers and thunderstorms likely, mainly between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms before 11pm, then showers and possibly a thunderstorm, mainly after 11pm. Low around 67. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers and possibly a thunderstorm. High near 74. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and possibly a thunderstorm. Low around 63. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Morristown NJ
 40.77°N 74.47°W (Elev. 381 ft)
Last Update:
11:26 pm EDT Jul 4, 2026
Forecast Valid:
11pm EDT Jul 4, 2026-6pm EDT Jul 11, 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