Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Overcast

27°F

-3°C

Humidity 74%
Wind Speed W 5 mph
Barometer 30.08 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 17 Jan 1:55 am EST
Extended Forecast for

Mountainside NJ

  • Overnight

    Overnight: A 40 percent chance of snow, mainly after 4am.  Mostly cloudy, with a steady temperature around 31. Light south wind.

    Low: 31 °F

    Chance Snow

  • Saturday

    Saturday: Rain and snow, mainly before 4pm.  High near 38. Light and variable wind becoming southwest 5 to 7 mph in the morning.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow then
    Rain/Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 4am.  Mostly cloudy, with a low around 29. Light west wind.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly after 7am.  Cloudy, with a high near 34. Calm wind becoming west around 6 mph in the afternoon.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21. West wind around 6 mph.

    Low: 21 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 23.

    High: 23 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of snow, mainly after 4am. Mostly cloudy, with a steady temperature around 31. Light south wind.
Saturday
Rain and snow, mainly before 4pm. High near 38. Light and variable wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow after 4am. Mostly cloudy, with a low around 29. Light west wind.
Sunday
A 50 percent chance of snow, mainly after 7am. Cloudy, with a high near 34. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 21. West wind around 6 mph.
M.L.King Day
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.66°N 74.35°W (Elev. 141 ft)
12:59 am EST Jan 17, 2026
2am EST Jan 17, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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