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.

Thunderstorm in Vicinity

70°F

21°C

Humidity 69%
Wind Speed NE 8 G 21 mph
Barometer 29.89 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Apr 3:53 pm EDT
Extended Forecast for

Summit NJ

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Partly sunny, with a high near 78. North wind around 8 mph. Chance of precipitation is 50%.

    High: 78 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers before 8pm. Mostly cloudy, with a low around 55. Northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 55 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers after 2am. Increasing clouds, with a low around 50. Southeast wind 5 to 9 mph.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. Temperature rising to near 53 by 9am, then falling to around 48 during the remainder of the day. Light northwest wind increasing to 10 to 15 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F⇓

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Showers
    Likely then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

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

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Partly sunny, with a high near 78. North wind around 8 mph. Chance of precipitation is 50%.
Tonight
Scattered showers before 8pm. Mostly cloudy, with a low around 55. Northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 69. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A 50 percent chance of showers after 2am. Increasing clouds, with a low around 50. Southeast wind 5 to 9 mph.
Sunday
Showers, mainly after 8am. Temperature rising to near 53 by 9am, then falling to around 48 during the remainder of the day. Light northwest wind increasing to 10 to 15 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 71.
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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:
2:24 pm EDT Apr 17, 2026
Forecast Valid:
4pm EDT Apr 17, 2026-6pm EDT Apr 24, 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