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

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Partly Cloudy

73°F

23°C

Humidity 47%
Wind Speed SW 7 mph
Barometer 29.93 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 16 May 8:45 pm EDT
Extended Forecast for

Mountainside NJ

  • Tonight

    Tonight: A chance of sprinkles. Partly cloudy, with a low around 62. West wind 7 to 9 mph.

    Low: 62 °F

    Chance
    Sprinkles

  • Sunday

    Sunday: Sunny, with a high near 88. West wind 5 to 8 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. Light and variable wind becoming southeast 5 to 9 mph in the morning.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. South wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 60%.

    High: 96 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of sprinkles. Partly cloudy, with a low around 62. West wind 7 to 9 mph.
Sunday
Sunny, with a high near 88. West wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 84. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 65. South wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers after 8am. Partly sunny, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 68.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 52.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.67°N 74.37°W (Elev. 200 ft)
Last Update:
2:24 pm EDT May 16, 2026
Forecast Valid:
9pm EDT May 16, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation