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

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Partly Cloudy

74°F

23°C

Humidity 93%
Wind Speed S 7 mph
Barometer 30.06 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 1 Jul 12:15 am EDT
Extended Forecast for

Bel Air South MD

Extreme Heat Watch July 2, 11:00am until July 3, 08:00pm
Heat Advisory July 1, 11:00am until July 1, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory

  • Overnight

    Overnight: A slight chance of showers between 1am and 3am. Partly cloudy, with a low around 72. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 101. South wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 13 mph, with gusts as high as 24 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 109. South wind 5 to 9 mph.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. South wind 5 to 7 mph becoming calm after midnight.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Chance of precipitation is 20%.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%.

    High: 98 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A slight chance of showers between 1am and 3am. Partly cloudy, with a low around 72. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 101. South wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 13 mph, with gusts as high as 24 mph.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 109. South wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 77. South wind 5 to 7 mph becoming calm after midnight.
Friday
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bel Air South MD
 39.48°N 76.32°W (Elev. 249 ft)
Last Update:
10:53 pm EDT Jun 30, 2026
Forecast Valid:
12am EDT Jul 1, 2026-6pm EDT Jul 7, 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