Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

A Few Clouds

77°F

25°C

Humidity 100%
Wind Speed W 9 mph
Barometer 29.91 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 Sep 12:15 am EDT
Extended Forecast for

5 Miles E Rising Sun MD

  • Overnight

    Overnight: Showers and thunderstorms likely before 2am, then a chance of showers.  Mostly cloudy, with a low around 71. West wind 3 to 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 5pm.  Increasing clouds, with a high near 85. Northwest wind 5 to 8 mph.  Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 64. Calm wind becoming north around 5 mph after midnight.  Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 80. North wind 5 to 7 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. North wind 3 to 5 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 71. West wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 85. Northwest wind 5 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 64. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 80. North wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 58. North wind 3 to 5 mph.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 56.
Labor Day
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Rising Sun MD
 39.69°N 75.96°W (Elev. 397 ft)
10:55 pm EDT Sep 3, 2026
12am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
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Additional Resources

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