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

28°F

-2°C

Humidity 100%
Wind Speed Calm
Barometer 29.66 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 14 Jan 4:15 am EST
Extended Forecast for

Mountainside NJ

  • Today

    Today: A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 50. Southwest wind 3 to 6 mph.

    High: 50 °F

    Chance
    Showers

  • Tonight

    Tonight: Rain showers likely before 4am, then a chance of rain and snow showers. Cloudy, with a low around 31. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow showers before 10am, then a slight chance of snow showers between 10am and 1pm. Partly sunny, with a temperature falling to around 27 by 5pm. Wind chill values between 15 and 25. West wind 10 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 39 °F⇓

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. Wind chill values between 5 and 15. West wind around 15 mph, with gusts as high as 29 mph.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32. West wind 11 to 14 mph, with gusts as high as 29 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.

    High: 40 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 50. Southwest wind 3 to 6 mph.
Tonight
Rain showers likely before 4am, then a chance of rain and snow showers. Cloudy, with a low around 31. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow showers before 10am, then a slight chance of snow showers between 10am and 1pm. Partly sunny, with a temperature falling to around 27 by 5pm. Wind chill values between 15 and 25. West wind 10 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 18. Wind chill values between 5 and 15. West wind around 15 mph, with gusts as high as 29 mph.
Friday
Mostly sunny, with a high near 32. West wind 11 to 14 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.69°N 74.37°W (Elev. 417 ft)
Last Update:
1:35 am EST Jan 14, 2026
Forecast Valid:
4am EST Jan 14, 2026-6pm EST Jan 20, 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