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

68°F

20°C

Humidity 56%
Wind Speed NW 10 G 17 mph
Barometer 29.71 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 6:45 am EDT
Extended Forecast for

Summit NJ

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 82 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 61. West wind 8 to 10 mph, with gusts as high as 23 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. West wind around 14 mph, with gusts as high as 26 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. West wind 5 to 9 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Light west wind increasing to 5 to 9 mph in the morning.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, mainly between 8am and 2pm, then rain and possibly a thunderstorm after 2pm. High near 78. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Monday Night

    Monday Night: Rain and possibly a thunderstorm before 8pm, then showers likely, mainly between 8pm and 2am. Low around 63. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 9 to 11 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 61. West wind 8 to 10 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 81. West wind around 14 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 61. West wind 5 to 9 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 83. Light west wind increasing to 5 to 9 mph in the morning.
Sunday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 64.
Monday
Showers, mainly between 8am and 2pm, then rain and possibly a thunderstorm after 2pm. High near 78. Chance of precipitation is 90%.
Monday Night
Rain and possibly a thunderstorm before 8pm, then showers likely, mainly between 8pm and 2am. Low around 63. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.37°W (Elev. 400 ft)
Last Update:
2:29 am EDT Jun 19, 2026
Forecast Valid:
7am EDT Jun 19, 2026-6pm EDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation