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

46°F

8°C

Humidity 53%
Wind Speed W 13 G 24 mph
Barometer 29.94 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 6 Nov 6:15 am EST
Extended Forecast for

Mountainside NJ

  • Today

    Today: Mostly sunny, with a high near 52. Northwest wind 11 to 16 mph, with gusts as high as 32 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Partly Cloudy
    then Areas
    Frost

  • Friday

    Friday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 58. Light southwest wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 28 mph.

    High: 58 °F

    Areas Frost
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Showers likely. Mostly cloudy, with a low around 50. South wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 65. West wind 6 to 9 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 52. Northwest wind 11 to 16 mph, with gusts as high as 32 mph.
Tonight
Areas of frost after 2am. Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.
Friday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 58. Light southwest wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 28 mph.
Friday Night
Showers likely. Mostly cloudy, with a low around 50. South wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 65. West wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 46.
Monday Night
Partly cloudy, with a low around 30.
Veterans Day
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 51.
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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:
5:51 am EST Nov 6, 2025
Forecast Valid:
6am EST Nov 6, 2025-6pm EST Nov 12, 2025
 
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