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.

Fair

39°F

4°C

Humidity 87%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 9 Mar 11:35 pm EDT
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Light south wind.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 55. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a temperature falling to around 44 by 5pm. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 60 °F⇓

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 44. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 48. Light south wind.
Wednesday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 55. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Thursday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a temperature falling to around 44 by 5pm. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 46.
Friday Night
A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Monday
Rain likely. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
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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:
11:38 pm EDT Mar 9, 2026
Forecast Valid:
12am EDT Mar 10, 2026-6pm EDT Mar 16, 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