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Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

A Few Clouds

46°F

8°C

Humidity 71%
Wind Speed W 7 mph
Barometer 30.08 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 17 Feb 5:45 pm EST
Extended Forecast for

Mountainside NJ

Dense Fog Advisory February 17, 10:00pm until February 18, 10:00am
Click here for hazard details and duration
Dense Fog Advisory

  • Tonight

    Tonight: Widespread dense fog after 1am. Otherwise, increasing clouds, with a low around 34. Light southwest wind.

    Low: 34 °F

    Mostly Cloudy
    then Dense
    Fog

  • Wednesday

    Wednesday: Rain likely, mainly before 10am. Areas of dense fog before 10am. Otherwise, cloudy, with a high near 42. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Rain Likely
    and Areas
    Dense Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 35. Light and variable wind becoming northwest around 5 mph in the evening.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain after 1pm. Cloudy, with a high near 41. Northeast wind 5 to 7 mph.

    High: 41 °F

    Cloudy then
    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain before 1am, then a chance of rain and snow. Cloudy, with a low around 33. East wind around 6 mph. Chance of precipitation is 50%.

    Low: 33 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Friday

    Friday: Rain, possibly mixed with snow, becoming all rain after 7am. High near 41. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow
    then Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 34.

    Low: 34 °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 and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Widespread dense fog after 1am. Otherwise, increasing clouds, with a low around 34. Light southwest wind.
Wednesday
Rain likely, mainly before 10am. Areas of dense fog before 10am. Otherwise, cloudy, with a high near 42. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 35. Light and variable wind becoming northwest around 5 mph in the evening.
Thursday
A 20 percent chance of rain after 1pm. Cloudy, with a high near 41. Northeast wind 5 to 7 mph.
Thursday Night
A chance of rain before 1am, then a chance of rain and snow. Cloudy, with a low around 33. East wind around 6 mph. Chance of precipitation is 50%.
Friday
Rain, possibly mixed with snow, becoming all rain after 7am. High near 41. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 34.
Saturday
Partly sunny, with a high near 45.
Saturday Night
A chance of rain and snow after 1am. 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 36.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 28.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 36.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Sunny, with a high near 31.
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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:
3:29 pm EST Feb 17, 2026
Forecast Valid:
6pm EST Feb 17, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation