Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Overcast

27°F

-3°C

Humidity 50%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 26 Dec 3:45 pm EST
Extended Forecast for

Summit NJ

Winter Storm Warning until December 27, 01:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until December 27, 01:00pm

    NOW until 1:00pm Sat

    Winter Storm Warning

  • This Afternoon

    High: 30 °F

    Snow

  • Tonight

    Tonight: Snow before 1am, then snow, possibly mixed with sleet. The snow could be heavy at times.  Steady temperature around 28. Wind chill values between 20 and 25. Southeast wind 6 to 8 mph becoming northeast after midnight.  Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 7 inches possible.

    Low: 28 °F

    Heavy Snow
    then
    Snow/Sleet

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 7am.  Cloudy, then gradually becoming mostly sunny, with a high near 31. Wind chill values between 15 and 25. Northeast wind 5 to 10 mph.

    High: 31 °F

    Chance Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17. Calm wind.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 1pm.  Mostly cloudy, with a high near 38. Light and variable wind.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain.  Temperature rising to around 38 by 5am. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain

  • Monday

    Monday: Rain, mainly before 1pm.  High near 49. Chance of precipitation is 90%.

    High: 49 °F

    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow. High near 30. Wind chill values between 25 and 30. Southeast wind around 5 mph. Chance of precipitation is 90%. Total daytime snow accumulation of around an inch possible.
Tonight
Snow before 1am, then snow, possibly mixed with sleet. The snow could be heavy at times. Steady temperature around 28. Wind chill values between 20 and 25. Southeast wind 6 to 8 mph becoming northeast after midnight. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 7 inches possible.
Saturday
A 30 percent chance of snow, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 31. Wind chill values between 15 and 25. Northeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 17. Calm wind.
Sunday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 38. Light and variable wind.
Sunday Night
Rain. Temperature rising to around 38 by 5am. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain, mainly before 1pm. High near 49. Chance of precipitation is 90%.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 22.
New Year's Day
Mostly sunny, with a high near 30.
Thursday Night
Mostly clear, with a low around 17.
Friday
Mostly sunny, with a high near 27.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.37°W (Elev. 400 ft)
1:55 pm EST Dec 26, 2025
4pm EST Dec 26, 2025-6pm EST Jan 2, 2026
 
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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