National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Freezing Fog

28°F

-2°C

Humidity 100%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 28°F (-2°C)
Visibility 0.25 mi
Last update 28 Feb 6:45 am EST
Extended Forecast for

Mountainside NJ

  • Today

    Today: Areas of fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 49. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 49 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Calm wind becoming north around 6 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 35. North wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 15. North wind 6 to 10 mph.

    Low: 15 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 31. North wind around 6 mph.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then rain likely. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 36. Chance of precipitation is 90%.

    Low: 36 °F

    Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 49. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 30. Calm wind becoming north around 6 mph after midnight.
Sunday
Snow likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 35. North wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly clear, with a low around 15. North wind 6 to 10 mph.
Monday
Sunny, with a high near 31. North wind around 6 mph.
Monday Night
Mostly clear, with a low around 17.
Tuesday
A chance of rain and snow before 1pm, then rain likely. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.
Tuesday Night
Rain. Low around 36. Chance of precipitation is 90%.
Wednesday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 50.
Wednesday Night
A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 36.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 52.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 43.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.66°N 74.35°W (Elev. 141 ft)
Last Update:
5:21 am EST Feb 28, 2026
Forecast Valid:
6am EST Feb 28, 2026-6pm EST Mar 6, 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