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

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Mostly Cloudy

54°F

12°C

Humidity 61%
Wind Speed NE 7 mph
Barometer 29.93 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 21 Mar 8:35 pm EDT
Extended Forecast for

Perryville MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. Calm wind becoming south around 6 mph after midnight.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 69. South wind 6 to 10 mph.

    High: 69 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 47. Northwest wind 7 to 9 mph becoming southwest in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Chance
    T-storms then
    Showers

  • Monday

    Monday: Showers before 8am, then a chance of rain between 8am and 2pm. High near 52. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Showers then
    Chance Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. North wind 7 to 10 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. Calm wind becoming south around 6 mph after midnight.
Sunday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 69. South wind 6 to 10 mph.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 47. Northwest wind 7 to 9 mph becoming southwest in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers before 8am, then a chance of rain between 8am and 2pm. High near 52. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly clear, with a low around 33. North wind 7 to 10 mph.
Tuesday
Sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Partly sunny, with a high near 58.
Thursday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
Rain likely. Partly sunny, with a high near 53. Chance of precipitation is 60%.
Friday Night
A chance of rain. Partly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.57°N 76.07°W (Elev. 79 ft)
Last Update:
7:53 pm EDT Mar 21, 2026
Forecast Valid:
9pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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