Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Fair

25°F

-4°C

Humidity 93%
Wind Speed Calm
Barometer 30.59 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 9 Apr 3:35 am EDT
Extended Forecast for

Mountainside NJ

  • Overnight

    Overnight: Widespread frost.  Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Frost

  • Thursday

    Thursday: Widespread frost before 8am.  Otherwise, mostly sunny, with a high near 55. South wind 3 to 8 mph.

    High: 55 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. South wind 5 to 8 mph becoming calm  in the evening.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 67. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46. South wind 6 to 8 mph becoming west after midnight.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Widespread frost. Otherwise, mostly clear, with a low around 30. Calm wind.
Thursday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 55. South wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 37. South wind 5 to 8 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 67. Light southwest wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly cloudy, with a low around 46. South wind 6 to 8 mph becoming west after midnight.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 41.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 48.
Monday
Mostly cloudy, with a high near 76.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.69°N 74.37°W (Elev. 417 ft)
3:30 am EDT Apr 9, 2026
3am EDT Apr 9, 2026-6pm EDT Apr 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database