Severe Thunderstorms and Heavy Rainfall Across the South; Heat Spreads Across the West and Southern Plains

A couple of frontal boundaries will move east and south from the Plains to the Gulf and Atlantic coastlines. These boundaries will focus showers and thunderstorms through the weekend, with scattered severe thunderstorms from the Southern Plains and across the Gulf Coast states. Locally heavy rainfall may also occur, which may be welcome news across drought areas. Meanwhile, heat spreads westward. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Overcast

67°F

19°C

Humidity 78%
Wind Speed NE 3 mph
Barometer 29.96 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 10 May 6:35 pm EDT
Extended Forecast for

Perryville MD

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 5am, then a chance of showers.  Cloudy, then gradually becoming partly cloudy, with a low around 52. West wind 5 to 10 mph becoming north after midnight.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: A chance of showers before 8am, then a slight chance of rain between 8am and 2pm.  Cloudy, then gradually becoming mostly sunny, with a high near 63. North wind around 8 mph.  Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. West wind 5 to 8 mph becoming north after midnight.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. North wind around 8 mph.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. South wind 3 to 7 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers, mainly before 2am.  Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: A chance of showers before 8am.  Mostly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 5am, then a chance of showers. Cloudy, then gradually becoming partly cloudy, with a low around 52. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 8am, then a slight chance of rain between 8am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 63. North wind around 8 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 42. West wind 5 to 8 mph becoming north after midnight.
Tuesday
Sunny, with a high near 63. North wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 52. South wind 3 to 7 mph.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Wednesday Night
Showers, mainly before 2am. Low around 54. Chance of precipitation is 90%.
Thursday
A chance of showers before 8am. Mostly sunny, with a high near 64. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.57°N 76.07°W (Elev. 79 ft)
4:53 pm EDT May 10, 2026
6pm EDT May 10, 2026-6pm EDT May 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database