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

28°F

-2°C

Humidity 100%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Mar 7:45 am EDT
Extended Forecast for

Summit NJ

  • Today

    Today: Rain likely after 5pm. Increasing clouds, with a high near 63. Light southwest wind becoming south 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.

    High: 63 °F

    Mostly Sunny
    then Rain
    Likely

  • Tonight

    Tonight: Rain, mainly before 11pm. Low around 45. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 57. Northwest wind around 9 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. North wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 2pm. Mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely after 5pm. Increasing clouds, with a high near 63. Light southwest wind becoming south 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Tonight
Rain, mainly before 11pm. Low around 45. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 57. Northwest wind around 9 mph.
Saturday Night
Mostly cloudy, with a low around 40. North wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of rain after 2pm. Mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 54.
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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:
2:26 am EDT Mar 20, 2026
Forecast Valid:
8am EDT Mar 20, 2026-6pm EDT Mar 26, 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