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

Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Overcast

35°F

2°C

Humidity 46%
Wind Speed S 16 G 24 mph
Barometer 30.25 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 21 Jan 3:35 pm EST
Extended Forecast for

Perryville MD

  • Tonight

    Tonight: A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and 10pm. Cloudy, then gradual clearing toward daybreak, with a low around 36. Southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 46. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Northwest wind 5 to 7 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39. West wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14. Northwest wind 14 to 17 mph, with gusts as high as 22 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 20%.

    High: 20 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow. Low around 15. Chance of precipitation is 90%.

    Low: 15 °F

    Snow Likely
    then Snow

  • Sunday

    Sunday: Snow. High near 22. Chance of precipitation is 90%.

    High: 22 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.

    Low: 19 °F

    Snow Likely

Detailed Forecast

Tonight
A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and 10pm. Cloudy, then gradual clearing toward daybreak, with a low around 36. Southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 46. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 28. Northwest wind 5 to 7 mph.
Friday
Partly sunny, with a high near 39. West wind 5 to 14 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 14. Northwest wind 14 to 17 mph, with gusts as high as 22 mph.
Saturday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 20%.
Saturday Night
Snow. Low around 15. Chance of precipitation is 90%.
Sunday
Snow. High near 22. Chance of precipitation is 90%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.
Monday
A chance of snow before 1pm. Partly sunny, with a high near 24. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 11.
Wednesday
Partly sunny, with a high near 26.
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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:
12:54 pm EST Jan 21, 2026
Forecast Valid:
3pm EST Jan 21, 2026-6pm EST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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