Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Overcast

28°F

-2°C

Humidity 69%
Wind Speed SW 5 mph
Barometer 29.98 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 19 Jan 4:45 pm EST
Extended Forecast for

Mountainside NJ

  • M.L.King Day

    M.L.King Day: A chance of flurries.  Partly sunny, with a high near 29. Wind chill values between 20 and 25. Southwest wind around 11 mph, with gusts as high as 23 mph.

    High: 29 °F

    Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries before 10pm.  Mostly cloudy, then gradually becoming clear, with a low around 12. Wind chill values between zero and 10. West wind 11 to 14 mph.

    Low: 12 °F

    Chance
    Flurries

  • Tuesday

    Tuesday: Sunny and cold, with a high near 20. Wind chill values between zero and 5. West wind 10 to 14 mph, with gusts as high as 28 mph.

    High: 20 °F

    Cold

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 8. West wind 5 to 9 mph becoming light  after midnight.

    Low: 8 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. Calm wind becoming south 5 to 8 mph in the morning.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a steady temperature around 30.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

Detailed Forecast

M.L.King Day
A chance of flurries. Partly sunny, with a high near 29. Wind chill values between 20 and 25. Southwest wind around 11 mph, with gusts as high as 23 mph.
Tonight
A chance of flurries before 10pm. Mostly cloudy, then gradually becoming clear, with a low around 12. Wind chill values between zero and 10. West wind 11 to 14 mph.
Tuesday
Sunny and cold, with a high near 20. Wind chill values between zero and 5. West wind 10 to 14 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 8. West wind 5 to 9 mph becoming light after midnight.
Wednesday
Mostly sunny, with a high near 31. Calm wind becoming south 5 to 8 mph in the morning.
Wednesday Night
Mostly cloudy, with a steady temperature around 30.
Thursday
Mostly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 29.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
Mostly cloudy and cold, with a high near 17.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 7.
Sunday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 17.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 7.
Monday
Partly sunny and cold, with a high near 20.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.69°N 74.37°W (Elev. 417 ft)
3:36 pm EST Jan 19, 2026
5pm EST Jan 19, 2026-6pm EST Jan 26, 2026
 
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