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.

Partly Cloudy

54°F

12°C

Humidity 33%
Wind Speed NW 15 G 22 mph
Barometer 30.04 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 6 Apr 1:45 pm EDT
Extended Forecast for

Mountainside NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 56. West wind around 11 mph, with gusts as high as 24 mph.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 39. West wind around 6 mph becoming light and variable in the evening.

    Low: 39 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 52. West wind 9 to 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29. Wind chill values between 20 and 25. North wind 8 to 10 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 49. Northeast wind 5 to 7 mph becoming southeast in the afternoon.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 56. West wind around 11 mph, with gusts as high as 24 mph.
Tonight
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 39. West wind around 6 mph becoming light and variable in the evening.
Tuesday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 52. West wind 9 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 29. Wind chill values between 20 and 25. North wind 8 to 10 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 49. Northeast wind 5 to 7 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 67.
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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:
2:19 pm EDT Apr 6, 2026
Forecast Valid:
2pm EDT Apr 6, 2026-6pm EDT Apr 12, 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