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Hazardous Weather Conditions

Current conditions at

Morristown Municipal (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Overcast

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 18 Jun 11:55 pm EDT
Extended Forecast for

Summit NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. Mostly sunny, with a high near 90. Heat index values as high as 96. Light southwest wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before 11pm. Some of the storms could be severe. Cloudy during the early evening, then gradual clearing, with a low around 65. West wind 7 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Severe
    Thunderstorms
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 85. West wind 8 to 10 mph.

    High: 85 °F

    Sunny

  • Friday Night

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

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 92.

    High: 92 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. Calm wind.
Juneteenth
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. Mostly sunny, with a high near 90. Heat index values as high as 96. Light southwest wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely, mainly before 11pm. Some of the storms could be severe. Cloudy during the early evening, then gradual clearing, with a low around 65. West wind 7 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 85. West wind 8 to 10 mph.
Friday Night
Mostly clear, with a low around 65. West wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Mostly cloudy, with a low around 70.
Sunday
Partly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 97.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit NJ
 40.71°N 74.39°W (Elev. 230 ft)
Last Update:
7:33 pm EDT Jun 18, 2025
Forecast Valid:
12am EDT Jun 19, 2025-6pm EDT Jun 25, 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