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.

Overcast

28°F

-2°C

Humidity 80%
Wind Speed Calm
Barometer 30.58 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 3 Mar 7:45 am EST
Extended Forecast for

Mountainside NJ

  • Today

    Today: A chance of snow before 10am, then rain and snow between 10am and noon, then rain after noon. High near 39. East wind 3 to 6 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    then Rain

  • Tonight

    Tonight: Rain, mainly before 1am. Steady temperature around 39. Calm wind becoming southwest around 6 mph in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52. Light and variable wind.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly after 1am. Cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Slight Chance
    Rain then
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly before 1pm. Cloudy, with a high near 49. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 41. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain Likely

  • Friday

    Friday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 52.

    High: 52 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of snow before 10am, then rain and snow between 10am and noon, then rain after noon. High near 39. East wind 3 to 6 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain, mainly before 1am. Steady temperature around 39. Calm wind becoming southwest around 6 mph in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, with a high near 52. Light and variable wind.
Wednesday Night
A 50 percent chance of rain, mainly after 1am. Cloudy, with a low around 39. Calm wind.
Thursday
Rain likely, mainly before 1pm. Cloudy, with a high near 49. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 52.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Sunday
Mostly cloudy, with a high near 67.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.66°N 74.35°W (Elev. 141 ft)
Last Update:
4:31 am EST Mar 3, 2026
Forecast Valid:
7am EST Mar 3, 2026-6pm EDT Mar 9, 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