Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Mostly Cloudy

82°F

28°C

Humidity 100%
Wind Speed S 7 mph
Barometer 29.88 in
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 9 Jul 2:15 pm EDT
Extended Forecast for

Perryville MD

Flood Watch until July 9, 11:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until July 9, 11:00pm

    NOW until 11:00pm Thu

    Flood Watch

  • This Afternoon

    High: 84 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 11pm. Some of the storms could produce heavy rainfall.  Low around 75. Light west wind.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 75 °F

    Heavy Rain
    then Partly
    Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Increasing clouds, with a high near 86. Northwest wind 5 to 7 mph.  Chance of precipitation is 50%.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then isolated showers.  Increasing clouds, with a low around 74. Light and variable wind.  Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms then
    Isolated
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 83. North wind 3 to 6 mph.  Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 84. South wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 11pm. Some of the storms could produce heavy rainfall. Low around 75. Light west wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 86. Northwest wind 5 to 7 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 11pm, then isolated showers. Increasing clouds, with a low around 74. Light and variable wind. Chance of precipitation is 40%.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. North wind 3 to 6 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 93.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.57°N 76.07°W (Elev. 79 ft)
2:23 pm EDT Jul 9, 2026
2pm EDT Jul 9, 2026-6pm EDT Jul 15, 2026
 
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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