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

Camp David (KRSP)

Lat: 39.65°NLon: 77.47°WElev: 1841ft.

Overcast

30°F

-1°C

Humidity 69%
Wind Speed S 15 G 24 mph
Barometer 30.10 in (1022.4 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 21 Jan 3:54 pm EST
Extended Forecast for

2 Miles ESE Boonsboro MD

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 32. South wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 43. West wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. West wind 7 to 9 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 35. West wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 35 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 8. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph.

    Low: 8 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Cloudy, with a high near 15. Chance of precipitation is 30%.

    High: 15 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 12. Chance of precipitation is 90%.

    Low: 12 °F

    Snow

  • Sunday

    Sunday: Snow. High near 16. Chance of precipitation is 90%.

    High: 16 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 11. Chance of precipitation is 60%.

    Low: 11 °F

    Snow Likely

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 32. South wind 10 to 18 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 43. West wind 10 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 26. West wind 7 to 9 mph.
Friday
Mostly cloudy, with a high near 35. West wind 7 to 16 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 8. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph.
Saturday
A chance of snow after 1pm. Cloudy, with a high near 15. Chance of precipitation is 30%.
Saturday Night
Snow. Low around 12. Chance of precipitation is 90%.
Sunday
Snow. High near 16. Chance of precipitation is 90%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 11. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 20.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Mostly sunny, with a high near 20.
Tuesday Night
Partly cloudy, with a low around 6.
Wednesday
Partly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Boonsboro MD
 39.51°N 77.61°W (Elev. 1230 ft)
Last Update:
3:53 pm EST Jan 21, 2026
Forecast Valid:
4pm EST Jan 21, 2026-6pm EST Jan 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