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Hazardous Weather Conditions

Current conditions at

Morristown Municipal (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Fog/Mist

68°F

20°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 30.04 in
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 17 Jun 2:45 pm EDT
Extended Forecast for

Mountainside NJ

  • This Afternoon

    This Afternoon: Patchy drizzle before 5pm, then patchy drizzle with a slight chance of showers after 5pm. Patchy fog. Otherwise, cloudy, with a high near 70. Southeast wind around 6 mph.

    High: 70 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog. Otherwise, cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Low around 69. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers then
    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: A 50 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Mostly sunny, with a high near 92. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.

    High: 92 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Some of the storms could be severe. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Patchy drizzle before 5pm, then patchy drizzle with a slight chance of showers after 5pm. Patchy fog. Otherwise, cloudy, with a high near 70. Southeast wind around 6 mph.
Tonight
A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog. Otherwise, cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Low around 69. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
A 50 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Mostly sunny, with a high near 92. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Some of the storms could be severe. Mostly cloudy, with a low around 66.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 97.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainside NJ
 40.67°N 74.4°W (Elev. 272 ft)
Last Update:
3:10 pm EDT Jun 17, 2025
Forecast Valid:
3pm EDT Jun 17, 2025-6pm EDT Jun 24, 2025
 
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