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.

Mostly Cloudy

57°F

14°C

Humidity 82%
Wind Speed SE 13 mph
Barometer 29.97 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Apr 5:45 pm EDT
Extended Forecast for

Summit NJ

  • Tonight

    Tonight: Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 48. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Mostly Cloudy
    then Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers, mainly before 2pm. Patchy fog before 8am. High near 56. Northwest wind 5 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Northwest wind 3 to 7 mph.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers. Mostly sunny, with a high near 51. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 51 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. North wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 41.

    Low: 41 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 48. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Sunday
Showers, mainly before 2pm. Patchy fog before 8am. High near 56. Northwest wind 5 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Partly cloudy, with a low around 39. Northwest wind 3 to 7 mph.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 51. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 31. North wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Increasing clouds, with a low around 41.
Wednesday
Mostly cloudy, with a high near 64.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 65.
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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:
6:34 pm EDT Apr 18, 2026
Forecast Valid:
6pm EDT Apr 18, 2026-6pm EDT Apr 25, 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