Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Clear

43°F

6°C

Humidity 49%
Wind Speed S 7 mph
Barometer 30.57 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 8 Apr 7:48 pm EDT
Extended Forecast for

Mountainside NJ

  • Tonight

    Tonight: Widespread frost, mainly after 5am.  Otherwise, clear, with a low around 33. Southeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 33 °F

    Clear then
    Frost

  • Thursday

    Thursday: Widespread frost, mainly before 7am.  Otherwise, sunny, with a high near 57. Calm wind becoming southeast 5 to 9 mph in the afternoon.

    High: 57 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. Southeast wind around 6 mph becoming calm  in the evening.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 48. South wind around 7 mph.

    Low: 48 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. Southeast wind 5 to 7 mph becoming calm in the evening.
Thursday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 57. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 38. Southeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 69. Calm wind becoming southwest 5 to 9 mph in the morning.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 48. South wind around 7 mph.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly cloudy, with a high near 77.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.66°N 74.35°W (Elev. 141 ft)
5:30 pm EDT Apr 8, 2026
7pm EDT Apr 8, 2026-6pm EDT Apr 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database