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

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.

A Few Clouds

77°F

25°C

Humidity 65%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Jun 8:53 am EDT
Extended Forecast for

Berkeley Heights NJ

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

  • Today

    Today: Mostly sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. Southwest wind around 5 mph.

    Low: 72 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 96. Heat index values as high as 102. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 96 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 78. West wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 101. Northwest wind around 5 mph.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 77.

    Low: 77 °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 77.

    Low: 77 °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

Detailed Forecast

Today
Mostly sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 72. Southwest wind around 5 mph.
Sunday
Partly sunny, with a high near 96. Heat index values as high as 102. West wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 78. West wind around 5 mph.
Monday
Sunny and hot, with a high near 101. Northwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Partly cloudy, with a low around 77.
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 69. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Berkeley Heights NJ
 40.67°N 74.43°W (Elev. 400 ft)
Last Update:
7:45 am EDT Jun 21, 2025
Forecast Valid:
9am EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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