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

75°F

24°C

Humidity 54%
Wind Speed N 10 G 16 mph
Barometer 30.05 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 1 Apr 3:36 pm EDT
Extended Forecast for

Summit NJ

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 78. Northwest wind around 8 mph. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers likely. Low around 45. East wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 11am. Cloudy, with a high near 49. East wind around 11 mph, with gusts as high as 21 mph.

    High: 49 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Cloudy, with a low around 42. East wind 6 to 9 mph.

    Low: 42 °F

    Slight Chance
    Showers

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 70 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 78. Northwest wind around 8 mph. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms before 2am, then showers likely. Low around 45. East wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers, mainly before 11am. Cloudy, with a high near 49. East wind around 11 mph, with gusts as high as 21 mph.
Thursday Night
A 20 percent chance of showers. Cloudy, with a low around 42. East wind 6 to 9 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 78.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55.
Sunday
Showers. High near 69. Chance of precipitation is 90%.
Sunday Night
Showers, mainly before 8pm. Low around 40. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Sunny, with a high near 51.
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:
2:31 pm EDT Apr 1, 2026
Forecast Valid:
3pm EDT Apr 1, 2026-6pm EDT Apr 8, 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