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.

Clear

73°F

23°C

Humidity 61%
Wind Speed N 8 G 17 mph
Barometer 29.98 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Jun 9:45 am EDT
Extended Forecast for

Summit NJ

  • Today

    Today: Sunny, with a high near 84. Northwest wind around 9 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 84. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 84 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 66. South wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers

  • Friday

    Friday: Showers before 8am, then a slight chance of showers and thunderstorms after 2pm. High near 82. West wind 5 to 7 mph. Chance of precipitation is 80%.

    High: 82 °F

    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 65 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Northwest wind around 9 mph.
Tonight
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Increasing clouds, with a high near 84. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
Showers and possibly a thunderstorm. Low around 66. South wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers before 8am, then a slight chance of showers and thunderstorms after 2pm. High near 82. West wind 5 to 7 mph. Chance of precipitation is 80%.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 65.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.37°W (Elev. 400 ft)
Last Update:
7:00 am EDT Jun 24, 2026
Forecast Valid:
9am EDT Jun 24, 2026-6pm EDT Jun 30, 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