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.

A Few Clouds

66°F

19°C

Humidity 64%
Wind Speed SE 15 G 21 mph
Barometer 30.05 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Apr 12:45 pm EDT
Extended Forecast for

Summit NJ

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 65. Southeast wind around 10 mph.

    High: 65 °F

    Partly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, cloudy, with a low around 49. Southeast wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 49 °F

    Slight Chance
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers, mainly before 2pm. Patchy fog before 8am. Steady temperature around 51. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 38. Northwest wind 5 to 7 mph.

    Low: 38 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 51. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 65. Southeast wind around 10 mph.
Tonight
Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, cloudy, with a low around 49. Southeast wind 5 to 8 mph. Chance of precipitation is 60%.
Sunday
Showers, mainly before 2pm. Patchy fog before 8am. Steady temperature around 51. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 38. Northwest wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 51. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 70.
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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:
8:37 am EDT Apr 18, 2026
Forecast Valid:
1pm EDT Apr 18, 2026-6pm EDT Apr 24, 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