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

36°F

2°C

Humidity 81%
Wind Speed Calm
Barometer 29.36 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 15 Jan 1:15 am EST
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: A 50 percent chance of showers. Cloudy, with a steady temperature around 40. Light southwest wind.

    Low: 40 °F

    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 10am. Partly sunny, with a temperature falling to around 31 by 5pm. Wind chill values between 20 and 30. West wind 8 to 16 mph, with gusts as high as 29 mph.

    High: 40 °F⇓

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Wind chill values between 5 and 15. West wind 13 to 16 mph, with gusts as high as 29 mph.

    Low: 19 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 34. Wind chill values between 5 and 15. West wind 9 to 15 mph, with gusts as high as 28 mph.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a steady temperature around 30. South wind 3 to 6 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.

    High: 41 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers. Cloudy, with a steady temperature around 40. Light southwest wind.
Thursday
A 20 percent chance of showers before 10am. Partly sunny, with a temperature falling to around 31 by 5pm. Wind chill values between 20 and 30. West wind 8 to 16 mph, with gusts as high as 29 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Wind chill values between 5 and 15. West wind 13 to 16 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 34. Wind chill values between 5 and 15. West wind 9 to 15 mph, with gusts as high as 28 mph.
Friday Night
Increasing clouds, with a steady temperature around 30. South wind 3 to 6 mph.
Saturday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A 30 percent chance of snow. Mostly cloudy, with a high near 34.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Mostly sunny, with a high near 26.
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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:
1:15 am EST Jan 15, 2026
Forecast Valid:
1am EST Jan 15, 2026-6pm EST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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