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.

Mostly Cloudy

43°F

6°C

Humidity 49%
Wind Speed W 16 G 31 mph
Barometer 29.80 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 11 Jan 2:50 pm EST
Extended Forecast for

Mountainside NJ

  • This Afternoon

    This Afternoon: A chance of rain and snow showers, mainly after 4pm. Partly sunny, with a high near 46. West wind around 14 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: A chance of rain and snow showers before 7pm. Mostly clear, with a low around 30. Wind chill values between 25 and 30. West wind 10 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 42. Wind chill values between 20 and 30. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. Southwest wind around 6 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. West wind 5 to 7 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain. Cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance Rain

Detailed Forecast

This Afternoon
A chance of rain and snow showers, mainly after 4pm. Partly sunny, with a high near 46. West wind around 14 mph. Chance of precipitation is 40%.
Tonight
A chance of rain and snow showers before 7pm. Mostly clear, with a low around 30. Wind chill values between 25 and 30. West wind 10 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 42. Wind chill values between 20 and 30. West wind 7 to 10 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 30. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 45. West wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 30 percent chance of rain. Cloudy, with a high near 50.
Wednesday Night
A 40 percent chance of rain. Cloudy, with a low around 36.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 41.
Thursday Night
A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of rain and snow. Partly sunny, with a high near 36.
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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:
1:42 pm EST Jan 11, 2026
Forecast Valid:
3pm EST Jan 11, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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