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.

Partly Cloudy

90°F

32°C

Humidity 33%
Wind Speed SW 15 G 24 mph
Barometer 29.74 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 16 Apr 4:45 pm EDT
Extended Forecast for

Summit NJ

  • Tonight

    Tonight: A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming northwest after midnight.

    Low: 66 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 79. Northwest wind around 7 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 57. North wind around 5 mph becoming east after midnight.

    Low: 57 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67. Southeast wind 6 to 9 mph.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 50. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 50 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 60. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Partly cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Monday Night

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

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming northwest after midnight.
Friday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 79. Northwest wind around 7 mph.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 57. North wind around 5 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 67. Southeast wind 6 to 9 mph.
Saturday Night
A slight chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 50. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Sunday
Showers, mainly after 8am. High near 60. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 37. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 66.
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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:
2:57 pm EDT Apr 16, 2026
Forecast Valid:
5pm EDT Apr 16, 2026-6pm EDT Apr 23, 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