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Briefing for Late June Heat Wave

An early season heat wave will bring dangerously hot and humid conditions across most of the region beginning Sunday through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Morristown Municipal (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Partly Cloudy

88°F

31°C

Humidity 49%
Wind Speed SW 9 mph
Barometer 30.08 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 21 Jun 4:45 pm EDT
Extended Forecast for

Florham Park NJ

Extreme Heat Warning June 22, 08:00am until June 25, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Heat index values as high as 102. West wind around 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. West wind 5 to 10 mph becoming light in the evening.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 101. Heat index values as high as 107. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. West wind around 5 mph becoming calm.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 30%.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 102. West wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 78. West wind 5 to 10 mph becoming light in the evening.
Monday
Sunny and hot, with a high near 101. Heat index values as high as 107. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 79. West wind around 5 mph becoming calm.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Florham Park NJ
 40.78°N 74.38°W (Elev. 200 ft)
Last Update:
4:12 pm EDT Jun 21, 2025
Forecast Valid:
5pm EDT Jun 21, 2025-6pm EDT Jun 28, 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