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.

Fog/Mist

41°F

5°C

Humidity 93%
Wind Speed N 5 mph
Barometer 29.91 in
Dewpoint 39°F (4°C)
Visibility 7.00 mi
Wind Chill38°F (3°C)
Last update 23 Mar 2:25 pm EDT
Extended Forecast for

Summit NJ

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 44. North wind around 9 mph.

    High: 44 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 30. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49. Wind chill values between 25 and 35 early. North wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 34. Southwest wind 3 to 6 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 55. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain, mainly after 2am. Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain, mainly before 8am. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Rain then
    Chance Rain

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 44. North wind around 9 mph.
Tonight
Mostly clear, with a low around 30. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 49. Wind chill values between 25 and 35 early. North wind 5 to 7 mph becoming light and variable in the afternoon.
Tuesday Night
Increasing clouds, with a low around 34. Southwest wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 55. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Mostly cloudy, with a high near 67.
Thursday Night
Rain, mainly after 2am. Low around 48. Chance of precipitation is 80%.
Friday
Rain, mainly before 8am. High near 56. Chance of precipitation is 80%.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 51.
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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:
2:20 pm EDT Mar 23, 2026
Forecast Valid:
2pm EDT Mar 23, 2026-6pm EDT Mar 29, 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