National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Fair

27°F

-3°C

Humidity 59%
Wind Speed N 5 mph
Barometer 30.58 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 8 Apr 6:15 am EDT
Extended Forecast for

Mountainside NJ

  • Today

    Today: Sunny, with a high near 50. Wind chill values between 20 and 30 early. North wind 6 to 9 mph becoming southeast in the afternoon.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, clear, with a low around 32. South wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Clear then
    Areas Frost

  • Thursday

    Thursday: Areas of frost before 9am. Otherwise, sunny, with a high near 56. Light southeast wind increasing to 5 to 9 mph in the morning.

    High: 56 °F

    Areas Frost
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 38. Southeast wind 5 to 7 mph becoming calm after midnight.

    Low: 38 °F

    Mostly Clear
    then Patchy
    Frost

  • Friday

    Friday: Patchy frost before 7am. Otherwise, sunny, with a high near 69. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 69 °F

    Patchy Frost
    then Sunny

  • Friday Night

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

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 63.

    High: 63 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 50. Wind chill values between 20 and 30 early. North wind 6 to 9 mph becoming southeast in the afternoon.
Tonight
Areas of frost after 3am. Otherwise, clear, with a low around 32. South wind around 6 mph becoming calm in the evening.
Thursday
Areas of frost before 9am. Otherwise, sunny, with a high near 56. Light southeast wind increasing to 5 to 9 mph in the morning.
Thursday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 38. Southeast wind 5 to 7 mph becoming calm after midnight.
Friday
Patchy frost before 7am. Otherwise, sunny, with a high near 69. Calm wind becoming south 5 to 9 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 63.
Saturday Night
Clear, with a low around 41.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 75.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.69°N 74.37°W (Elev. 417 ft)
Last Update:
3:28 am EDT Apr 8, 2026
Forecast Valid:
6am EDT Apr 8, 2026-6pm EDT Apr 14, 2026
 
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