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

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Partly Cloudy

77°F

25°C

Humidity 83%
Wind Speed S 5 mph
Barometer 30.17 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Aug 8:45 am EDT
Extended Forecast for

Summit NJ

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.

    High: 85 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 96. Southwest wind 3 to 7 mph.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Partly cloudy, with a low around 66. Light and variable wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 76. Northeast wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 2pm. Partly sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 96. Southwest wind 3 to 7 mph.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Partly cloudy, with a low around 66. Light and variable wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 30%.
Monday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 76. Northeast wind 7 to 9 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 63.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Wednesday
A 30 percent chance of showers before 2pm. Partly sunny, with a high near 78.
Wednesday Night
Mostly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.37°W (Elev. 400 ft)
Last Update:
6:08 am EDT Aug 16, 2025
Forecast Valid:
9am EDT Aug 16, 2025-6pm EDT Aug 22, 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