Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Partly Cloudy

18°F

-8°C

Humidity 93%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 5 Jan 6:46 am EST
Extended Forecast for

Mountainside NJ

  • Today

    Today: A slight chance of snow between 10am and 4pm.  Mostly cloudy, with a high near 34. Calm wind becoming south around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Light and variable wind.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 41. Calm wind.

    High: 41 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain before 1am.  Mostly cloudy, with a steady temperature around 38. Calm wind becoming west around 6 mph after midnight.

    Low: 38 °F

    Chance Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. West wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after 1am.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 50 percent chance of rain.  Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of snow between 10am and 4pm. Mostly cloudy, with a high near 34. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 28. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 41. Calm wind.
Tuesday Night
A 40 percent chance of rain before 1am. Mostly cloudy, with a steady temperature around 38. Calm wind becoming west around 6 mph after midnight.
Wednesday
Mostly sunny, with a high near 48. West wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 38.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 56.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Rain likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.66°N 74.35°W (Elev. 141 ft)
1:36 am EST Jan 5, 2026
7am EST Jan 5, 2026-6pm EST Jan 11, 2026
 
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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