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

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Fair

24°F

-4°C

Humidity 33%
Wind Speed W 3 mph
Barometer 30.54 in (1034.3 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 20 Jan 9:54 pm EST
Extended Forecast for

Arnold MD

  • Tonight

    Tonight: Clear, with a low around 18. Northwest wind around 5 mph becoming calm after midnight.

    Low: 18 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 39. Southeast wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 39 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 47. Southwest wind 7 to 10 mph.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27. Northwest wind 3 to 5 mph.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow before 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 40%.

    High: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 15. Chance of precipitation is 80%.

    Low: 15 °F

    Snow

Detailed Forecast

Tonight
Clear, with a low around 18. Northwest wind around 5 mph becoming calm after midnight.
Wednesday
Increasing clouds, with a high near 39. Southeast wind 6 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 47. Southwest wind 7 to 10 mph.
Thursday Night
Partly cloudy, with a low around 27. Northwest wind 3 to 5 mph.
Friday
A slight chance of snow before 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 12.
Saturday
A chance of snow after 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 40%.
Saturday Night
Snow. Low around 15. Chance of precipitation is 80%.
Sunday
Snow. High near 22. Chance of precipitation is 80%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 14. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arnold MD
 39.05°N 76.48°W (Elev. 98 ft)
Last Update:
9:53 pm EST Jan 20, 2026
Forecast Valid:
9pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation