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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

73°F

23°C

Humidity 38%
Wind Speed SE 8 mph
Barometer 29.82 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Jun 5:35 pm EDT
Extended Forecast for

Perryville MD

  • Tonight

    Tonight: A chance of showers, mainly after 4am. Increasing clouds, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 84. Southeast wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 68. South wind 5 to 7 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 91. Southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 69. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers before 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers, mainly after 4am. Increasing clouds, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 84. Southeast wind 3 to 8 mph. Chance of precipitation is 30%.
Wednesday Night
Increasing clouds, with a low around 68. South wind 5 to 7 mph.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 91. Southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 69. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Juneteenth
A chance of showers before 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 84.
Sunday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.56°N 76.04°W (Elev. 0 ft)
Last Update:
5:14 pm EDT Jun 16, 2026
Forecast Valid:
5pm EDT Jun 16, 2026-6pm EDT Jun 23, 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