National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

A Few Clouds

46°F

8°C

Humidity 37%
Wind Speed W 17 G 24 mph
Barometer 29.98 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 22 Jan 2:45 pm EST
Extended Forecast for

Summit NJ

Winter Storm Watch January 25, 03:00am until January 26, 06:00pm
Cold Weather Advisory January 23, 10:00pm until January 24, 10:00am
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. West wind 6 to 9 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34. Wind chill values between 15 and 25. West wind 6 to 16 mph, with gusts as high as 30 mph.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 7. Wind chill values between -5 and zero. Northwest wind 8 to 16 mph, with gusts as high as 29 mph.

    Low: 7 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 18. Wind chill values between -5 and 5. Northwest wind 6 to 8 mph.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: A 50 percent chance of snow after 1am. Cloudy, with a low around 11. North wind 3 to 5 mph.

    Low: 11 °F

    Cloudy then
    Chance Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 21. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 21 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. Low around 16. Chance of precipitation is 90%.

    Low: 16 °F

    Snow

  • Monday

    Monday: Snow likely, mainly before noon. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.

    High: 25 °F

    Snow Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. West wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 34. Wind chill values between 15 and 25. West wind 6 to 16 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 7. Wind chill values between -5 and zero. Northwest wind 8 to 16 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny and cold, with a high near 18. Wind chill values between -5 and 5. Northwest wind 6 to 8 mph.
Saturday Night
A 50 percent chance of snow after 1am. Cloudy, with a low around 11. North wind 3 to 5 mph.
Sunday
Snow. The snow could be heavy at times. High near 21. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Sunday Night
Snow. Low around 16. Chance of precipitation is 90%.
Monday
Snow likely, mainly before noon. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Mostly sunny and cold, with a high near 20.
Tuesday Night
Mostly clear, with a low around 7.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Partly sunny, with a high near 22.
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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:
2:40 pm EST Jan 22, 2026
Forecast Valid:
3pm EST Jan 22, 2026-6pm EST Jan 29, 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