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.

Fair

14°F

-10°C

Humidity 73%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 10 Feb 3:15 am EST
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 15. Calm wind.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 33. Wind chill values between 15 and 25. Calm wind becoming south around 5 mph in the afternoon.

    High: 33 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of freezing rain and sleet before 1am. Cloudy, then gradually becoming partly cloudy, with a steady temperature around 31. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 50%.

    Low: 31 °F

    Chance Wintry
    Mix

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. Wind chill values between 25 and 30. West wind 7 to 13 mph, with gusts as high as 26 mph.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. West wind around 10 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 15. Calm wind.
Tuesday
Mostly cloudy, with a high near 33. Wind chill values between 15 and 25. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A chance of freezing rain and sleet before 1am. Cloudy, then gradually becoming partly cloudy, with a steady temperature around 31. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 38. Wind chill values between 25 and 30. West wind 7 to 13 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 25. West wind around 10 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Sunday Night
Rain and snow likely. Cloudy, with a low around 31. Chance of precipitation is 60%.
Washington's Birthday
A 50 percent chance of rain. Mostly cloudy, with a high near 40.
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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:
2:28 am EST Feb 10, 2026
Forecast Valid:
3am EST Feb 10, 2026-6pm EST Feb 16, 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