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.

Fog/Mist

46°F

8°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 30.30 in
Dewpoint 46°F (8°C)
Visibility 1.00 mi
Wind Chill43°F (6°C)
Last update 3 Apr 10:45 am EDT
Extended Forecast for

Mountainside NJ

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 9 mph in the afternoon.

    High: 74 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southwest wind around 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 50. East wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 71. West wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 71 °F

    Showers

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 41.

    Low: 41 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 9 mph in the afternoon.
Tonight
Partly cloudy, with a low around 59. Southwest wind around 7 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50. East wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday
Showers. High near 71. West wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 31.
Wednesday
Sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 65.
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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:
2:20 am EDT Apr 3, 2026
Forecast Valid:
10am EDT Apr 3, 2026-6pm EDT Apr 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