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.

Rain Fog/Mist

57°F

14°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 30.30 in
Dewpoint 57°F (14°C)
Visibility 3.00 mi
Last update 11 Oct 11:45 am EDT
Extended Forecast for

Mountainside NJ

  • This Afternoon

    This Afternoon: Rain, with thunderstorms also possible after 5pm. High near 64. East wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Rain

  • Tonight

    Tonight: Rain and possibly a thunderstorm, mainly before 2am, then a chance of rain and thunderstorms after 2am. Low around 56. Northeast wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Rain

  • Columbus Day

    Columbus Day: A chance of rain and thunderstorms before 8am, then a slight chance of showers between 8am and 11am. Cloudy through mid morning, then gradual clearing, with a high near 71. North wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Light north wind.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
Rain, with thunderstorms also possible after 5pm. High near 64. East wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain and possibly a thunderstorm, mainly before 2am, then a chance of rain and thunderstorms after 2am. Low around 56. Northeast wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Columbus Day
A chance of rain and thunderstorms before 8am, then a slight chance of showers between 8am and 11am. Cloudy through mid morning, then gradual clearing, with a high near 71. North wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 54. Light north wind.
Tuesday
Mostly sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 66.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.67°N 74.37°W (Elev. 200 ft)
Last Update:
11:12 am EDT Oct 11, 2026
Forecast Valid:
12pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation