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

50°F

10°C

Humidity 100%
Wind Speed Calm
Barometer 30.46 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 10 Oct 8:45 am EDT
Extended Forecast for

Summit NJ

  • Today

    Today: Partly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Light and variable wind.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly after 11am. High near 64. East wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Rain

  • Sunday Night

    Sunday Night: Rain and possibly a thunderstorm before 2am, then a chance of rain and thunderstorms after 2am. Steady temperature around 61. East wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Rain

  • Columbus Day

    Columbus Day: A 30 percent chance of rain and thunderstorms before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 71. North wind 7 to 9 mph.

    High: 71 °F

    Chance Rain
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 68. Light and variable wind.
Tonight
Increasing clouds, with a low around 52. Light and variable wind.
Sunday
Rain, mainly after 11am. High near 64. East wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain and possibly a thunderstorm before 2am, then a chance of rain and thunderstorms after 2am. Steady temperature around 61. East wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Columbus Day
A 30 percent chance of rain and thunderstorms before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 71. North wind 7 to 9 mph.
Monday Night
Mostly clear, with a low around 56.
Tuesday
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 72.
Tuesday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 63.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 49.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
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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:
2:11 am EDT Oct 10, 2026
Forecast Valid:
9am EDT Oct 10, 2026-6pm EDT Oct 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