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.

Fog

32°F

0°C

Humidity 100%
Wind Speed Calm
Barometer 29.56 in
Dewpoint 32°F (0°C)
Visibility 0.50 mi
Last update 29 Dec 4:15 am EST
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: A 20 percent chance of rain. Areas of fog. Otherwise, cloudy, with a steady temperature around 38. Southwest wind around 6 mph.

    Low: 38 °F

    Slight Chance
    Rain and
    Areas Fog

  • Monday

    Monday: Rain, mainly before 1pm. Areas of fog before 10am. High near 50. Breezy, with a south wind 7 to 12 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain and
    Areas Fog

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Wind chill values between 15 and 25. Breezy, with a west wind 20 to 22 mph, with gusts as high as 41 mph.

    Low: 25 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Wind chill values between 10 and 20. Breezy, with a west wind 20 to 22 mph, with gusts as high as 40 mph.

    High: 32 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. West wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Areas of fog. Otherwise, cloudy, with a steady temperature around 38. Southwest wind around 6 mph.
Monday
Rain, mainly before 1pm. Areas of fog before 10am. High near 50. Breezy, with a south wind 7 to 12 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Partly cloudy, with a low around 25. Wind chill values between 15 and 25. Breezy, with a west wind 20 to 22 mph, with gusts as high as 41 mph.
Tuesday
Partly sunny, with a high near 32. Wind chill values between 10 and 20. Breezy, with a west wind 20 to 22 mph, with gusts as high as 40 mph.
Tuesday Night
Mostly cloudy, with a low around 23. West wind 9 to 14 mph, with gusts as high as 28 mph.
Wednesday
Partly sunny, with a high near 33.
Wednesday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 20.
New Year's Day
Mostly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Partly sunny, with a high near 32.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 31.
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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:
1:06 am EST Dec 29, 2025
Forecast Valid:
4am EST Dec 29, 2025-6pm EST Jan 4, 2026
 
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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