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.

Clear

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 8 Jan 7:55 pm EST
Extended Forecast for

Summit NJ

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 52. Calm wind becoming south 5 to 8 mph in the morning.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 1am. Cloudy, with a low around 41. South wind around 6 mph becoming northwest after midnight.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly after 1pm. High near 47. Light and variable wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 39. East wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Sunday

    Sunday: A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 47. Breezy.

    High: 47 °F

    Chance Rain
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Breezy.

    Low: 28 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. Calm wind.
Friday
A 40 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 52. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
A 40 percent chance of rain, mainly before 1am. Cloudy, with a low around 41. South wind around 6 mph becoming northwest after midnight.
Saturday
Rain, mainly after 1pm. High near 47. Light and variable wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain, mainly before 1am. Low around 39. East wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 47. Breezy.
Sunday Night
Partly cloudy, with a low around 28. Breezy.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.37°W (Elev. 400 ft)
Last Update:
12:58 pm EST Jan 8, 2026
Forecast Valid:
8pm EST Jan 8, 2026-6pm EST Jan 15, 2026
 
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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