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 100%
Wind Speed NE 8 mph
Barometer 29.49 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 Nov 12:45 pm EST
Extended Forecast for

Mountainside NJ

  • This Afternoon

    This Afternoon: Rain. High near 59. Northeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Rain

  • Tonight

    Tonight: Rain. Low around 39. North wind 8 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Friday

    Friday: Rain. High near 45. North wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Rain

  • Friday Night

    Friday Night: A slight chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Northwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 46. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 46 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

This Afternoon
Rain. High near 59. Northeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Rain. Low around 39. North wind 8 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 45. North wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Northwest wind around 7 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 46. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Sunny, with a high near 58.
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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:
10:28 am EST Nov 12, 2026
Forecast Valid:
1pm EST Nov 12, 2026-6pm EST Nov 18, 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