Dangerous, Heat Wave Persists in the Eastern U.S.; Severe Weather Expected in the Central Plains and Mid-Atlantic

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Severe thunderstorms are expected to produce damaging wind gusts from the Upper Ohio Valley into the Mid Atlantic, and across the central Great Plains this afternoon and evening. Large hail and heavy rain is also possible across the Great Plains. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

79°F

26°C

Humidity 70%
Wind Speed NW 5 mph
Barometer 29.96 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 4 Jul 6:55 am EDT
Extended Forecast for

2 Miles ESE Darlington MD

Extreme Heat Warning July 4, 10:00am until July 4, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Independence Day

    Independence Day: Scattered showers and thunderstorms, mainly after 5pm.  Increasing clouds and hot, with a high near 99. Heat index values as high as 111. Calm wind becoming west 5 to 8 mph in the afternoon.  Chance of precipitation is 30%.

    High: 99 °F

    Sunny then
    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly between midnight and 1am.  Mostly cloudy, with a low around 72. Light and variable wind.  Chance of precipitation is 50%.

    Low: 72 °F

    Scattered
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 5pm.  Partly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming southeast around 5 mph in the afternoon.  Chance of precipitation is 30%.

    High: 91 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm.  Low around 68. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 68 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 83. East wind 3 to 6 mph.  Chance of precipitation is 80%.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm.  Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Independence Day
Scattered showers and thunderstorms, mainly after 5pm. Increasing clouds and hot, with a high near 99. Heat index values as high as 111. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, mainly between midnight and 1am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers and possibly a thunderstorm. High near 83. East wind 3 to 6 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Darlington MD
 39.62°N 76.17°W (Elev. 49 ft)
4:53 am EDT Jul 4, 2026
7am EDT Jul 4, 2026-6pm EDT Jul 10, 2026
 
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Additional Resources

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