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.

Mostly Cloudy

77°F

25°C

Humidity 39%
Wind Speed W 13 G 20 mph
Barometer 30.00 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 26 Aug 4:45 pm EDT
Extended Forecast for

Summit NJ

  • Tonight

    Tonight: Isolated showers between 7pm and 9pm. Partly cloudy, with a low around 56. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Isolated
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77. Northwest wind 6 to 9 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. Northwest wind around 6 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 61. South wind around 6 mph.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers after 2pm. Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers between 7pm and 9pm. Partly cloudy, with a low around 56. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 77. Northwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 54. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 61. South wind around 6 mph.
Friday
A 40 percent chance of showers after 2pm. Partly sunny, with a high near 77.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 55.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 57.
Labor Day
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 78.
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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:
2:19 pm EDT Aug 26, 2025
Forecast Valid:
5pm EDT Aug 26, 2025-6pm EDT Sep 2, 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