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.

Light Rain

61°F

16°C

Humidity 72%
Wind Speed S 7 mph
Barometer 30.03 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 31 Mar 2:55 am EDT
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: Showers likely before 5am. Mostly cloudy, with a steady temperature around 62. Southwest wind around 8 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers between 11am and 2pm. Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 8am, then a chance of rain between 8am and 2pm, then rain likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 78. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm before 2am, then a chance of rain. Low around 46. Northeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Rain

  • Thursday

    Thursday: A 30 percent chance of rain. Cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 2am. Cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely before 5am. Mostly cloudy, with a steady temperature around 62. Southwest wind around 8 mph. Chance of precipitation is 60%.
Tuesday
A slight chance of showers between 11am and 2pm. Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 8am, then a chance of rain between 8am and 2pm, then rain likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 78. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain and possibly a thunderstorm before 2am, then a chance of rain. Low around 46. Northeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of rain. Cloudy, with a high near 51.
Thursday Night
A 30 percent chance of rain before 2am. Cloudy, with a low around 44.
Friday
Mostly cloudy, with a high near 71.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
Partly sunny, with a high near 78.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 55.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 74.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 55.
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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:
2:46 am EDT Mar 31, 2026
Forecast Valid:
3am EDT Mar 31, 2026-6pm EDT Apr 6, 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