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.

Mostly Cloudy

32°F

0°C

Humidity 47%
Wind Speed NW 16 G 30 mph
Barometer 29.68 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 30 Dec 12:45 pm EST
Extended Forecast for

Mountainside NJ

Wind Advisory December 30, 01:30pm until December 30, 06:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 30, 01:30pm until December 30, 06:00pm

    NOW until 6:00pm Tue

    Wind Advisory

  • This Afternoon

    High: 31 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Wind chill values between 15 and 20. West wind 10 to 13 mph, with gusts as high as 29 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Wind chill values between 15 and 25. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 22. Southwest wind 6 to 8 mph.

    Low: 22 °F

    Chance Snow

  • New Year's Day

    New Year's Day: A 20 percent chance of snow before 1pm. Mostly sunny, with a high near 29. West wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 29 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 31. Wind chill values between 20 and 25. West wind 15 to 17 mph, with gusts as high as 39 mph.
Tonight
Partly cloudy, with a low around 23. Wind chill values between 15 and 20. West wind 10 to 13 mph, with gusts as high as 29 mph.
Wednesday
Partly sunny, with a high near 32. Wind chill values between 15 and 25. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 22. Southwest wind 6 to 8 mph.
New Year's Day
A 20 percent chance of snow before 1pm. Mostly sunny, with a high near 29. West wind 8 to 10 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Partly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 22.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
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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:
1:04 am EST Dec 30, 2025
Forecast Valid:
1pm EST Dec 30, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation