National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Fog/Mist

37°F

3°C

Humidity 100%
Wind Speed NE 5 mph
Barometer 29.83 in
Dewpoint 37°F (3°C)
Visibility 1.00 mi
Wind Chill33°F (1°C)
Last update 18 Feb 8:50 pm EST
Extended Forecast for

Mountainside NJ

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Areas of fog between 10pm and 1am. Otherwise, cloudy, with a low around 34. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely
    and Areas Fog
    then Chance
    Rain and
    Areas Fog

  • Thursday

    Thursday: Cloudy, with a high near 40. Northeast wind around 7 mph.

    High: 40 °F

    Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a steady temperature around 37. East wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain, mainly before 4pm. High near 40. East wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 35. Northeast wind around 6 mph becoming west after midnight.

    Low: 35 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A 50 percent chance of snow. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Snow

Detailed Forecast

Tonight
Rain likely, mainly before 10pm. Areas of fog between 10pm and 1am. Otherwise, cloudy, with a low around 34. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Cloudy, with a high near 40. Northeast wind around 7 mph.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a steady temperature around 37. East wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly before 4pm. High near 40. East wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 35. Northeast wind around 6 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 45.
Saturday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 35.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 29.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 36.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.69°N 74.37°W (Elev. 417 ft)
Last Update:
12:48 pm EST Feb 18, 2026
Forecast Valid:
9pm EST Feb 18, 2026-6pm EST Feb 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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