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

54°F

12°C

Humidity 94%
Wind Speed N 9 G 18 mph
Barometer 29.65 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Wind Chill51°F (11°C)
Last update 12 Mar 7:45 am EDT
Extended Forecast for

Mountainside NJ

  • Today

    Today: Rain likely before 3pm, then rain and snow likely. Cloudy, with a temperature falling to around 41 by 5pm. Northwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 54 °F⇓

    Chance Rain
    then
    Rain/Snow
    Likely

  • Tonight

    Tonight: Rain and snow likely, mainly before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain/Snow
    Likely then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 48. Light southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 48 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53. West wind around 14 mph, with gusts as high as 28 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 35.

    Low: 35 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 50.

    High: 50 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain. High near 65. Chance of precipitation is 90%.

    High: 65 °F

    Rain

Detailed Forecast

Today
Rain likely before 3pm, then rain and snow likely. Cloudy, with a temperature falling to around 41 by 5pm. Northwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
Rain and snow likely, mainly before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 48. Light southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Friday Night
Partly cloudy, with a low around 38. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 53. West wind around 14 mph, with gusts as high as 28 mph.
Saturday Night
Increasing clouds, with a low around 35.
Sunday
Cloudy, with a high near 50.
Sunday Night
Rain, mainly after 2am. Low around 44. Chance of precipitation is 80%.
Monday
Rain. High near 65. Chance of precipitation is 90%.
Monday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Sunny, with a high near 40.
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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:
7:04 am EDT Mar 12, 2026
Forecast Valid:
8am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation