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.

Fair

34°F

1°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Mar 4:15 am EDT
Extended Forecast for

Summit NJ

  • Today

    Today: Sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. Southwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 75. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 2am. Mostly cloudy, with a low around 55. South wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before 5pm, then a chance of rain and snow. Mostly cloudy, with a temperature falling to around 44 by 4pm. Northwest wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    High: 58 °F⇓

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 8pm. Partly cloudy, with a low around 30.

    Low: 30 °F

    Chance Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 47.

    High: 47 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 48. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 75. Calm wind becoming south 5 to 9 mph in the afternoon.
Wednesday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 55. South wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain before 5pm, then a chance of rain and snow. Mostly cloudy, with a temperature falling to around 44 by 4pm. Northwest wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of snow before 8pm. Partly cloudy, with a low around 30.
Friday
Increasing clouds, with a high near 47.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Cloudy, with a high near 55.
Sunday Night
Rain. Low around 44. Chance of precipitation is 90%.
Monday
Rain. High near 55. Chance of precipitation is 80%.
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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:
2:07 am EDT Mar 10, 2026
Forecast Valid:
4am EDT Mar 10, 2026-6pm EDT Mar 16, 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