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

75°F

24°C

Humidity 57%
Wind Speed Calm
Barometer 29.88 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Apr 1:55 am EDT
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. Light southwest wind.

    Low: 67 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 67. Southwest wind 5 to 7 mph.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 79. Northwest wind 6 to 8 mph.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 56. North wind around 6 mph becoming light and variable in the evening.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 67. Light southwest wind.
Thursday
Mostly sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 67. Southwest wind 5 to 7 mph.
Friday
A 40 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 79. Northwest wind 6 to 8 mph.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 56. North wind around 6 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 67.
Saturday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 49.
Sunday
Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Partly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.37°W (Elev. 400 ft)
Last Update:
7:26 pm EDT Apr 15, 2026
Forecast Valid:
2am EDT Apr 16, 2026-6pm EDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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