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

Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

66°F

19°C

Humidity 62%
Wind Speed SW 12 mph
Barometer 30.09 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 31 Mar 9:35 am EDT
Extended Forecast for

Perryville MD

  • Today

    Today: Mostly sunny, with a high near 76. South wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers and thunderstorms before 4am, then isolated showers between 4am and 5am, then isolated showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. Southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Mostly Cloudy
    then Isolated
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 56. Southwest wind around 6 mph becoming east after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 64. East wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 76. South wind 11 to 15 mph, with gusts as high as 26 mph.
Tonight
Isolated showers and thunderstorms before 4am, then isolated showers between 4am and 5am, then isolated showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. Southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 56. Southwest wind around 6 mph becoming east after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 64. East wind 8 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 72.
Friday Night
A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 57. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.57°N 76.07°W (Elev. 79 ft)
Last Update:
7:53 am EDT Mar 31, 2026
Forecast Valid:
9am EDT Mar 31, 2026-6pm EDT Apr 6, 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