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.

Partly Cloudy

30°F

-1°C

Humidity 64%
Wind Speed SW 9 mph
Barometer 29.97 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 9 Dec 8:45 pm EST
Extended Forecast for

Mountainside NJ

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Southwest wind around 7 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain, mainly after 1pm. High near 42. Wind chill values between 20 and 30. Southwest wind 8 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Chance Rain
    then Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, possibly mixing with snow after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 29. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 36. Wind chill values between 20 and 25. West wind 14 to 17 mph, with gusts as high as 34 mph.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23. West wind 10 to 14 mph, with gusts as high as 31 mph.

    Low: 23 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of light snow after 1am. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Light Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Southwest wind around 7 mph.
Wednesday
Rain, mainly after 1pm. High near 42. Wind chill values between 20 and 30. Southwest wind 8 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of rain, possibly mixing with snow after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 29. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 36. Wind chill values between 20 and 25. West wind 14 to 17 mph, with gusts as high as 34 mph.
Thursday Night
Partly cloudy, with a low around 23. West wind 10 to 14 mph, with gusts as high as 31 mph.
Friday
Mostly sunny, with a high near 37.
Friday Night
A 30 percent chance of light snow after 1am. Mostly cloudy, with a low around 25.
Saturday
Mostly cloudy, with a high near 39.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 28.
Sunday
A 40 percent chance of snow before noon. Partly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.66°N 74.35°W (Elev. 141 ft)
Last Update:
5:42 pm EST Dec 9, 2025
Forecast Valid:
8pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
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