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

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

37°F

3°C

Humidity 54%
Wind Speed NA
Barometer 30.22 in (1023.1 mb)
Dewpoint 22°F (-6°C)
Visibility NA
Last update 21 Jan 5:53 pm EST
Extended Forecast for

Riderwood MD

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 32. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Mostly sunny, with a high near 47. West wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. Northwest wind around 6 mph becoming calm after midnight.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 39. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 39 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 9. Northwest wind around 11 mph, with gusts as high as 22 mph.

    Low: 9 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 18. Chance of precipitation is 20%.

    High: 18 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

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

    Low: 12 °F

    Snow

  • Sunday

    Sunday: Snow. High near 21. Chance of precipitation is 90%.

    High: 21 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%.

    Low: 15 °F

    Snow Likely

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 32. South wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 47. West wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 26. Northwest wind around 6 mph becoming calm after midnight.
Friday
Mostly cloudy, with a high near 39. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 9. Northwest wind around 11 mph, with gusts as high as 22 mph.
Saturday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 18. Chance of precipitation is 20%.
Saturday Night
Snow. Low around 12. Chance of precipitation is 90%.
Sunday
Snow. High near 21. Chance of precipitation is 90%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%.
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 7.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riderwood MD
 39.43°N 76.61°W (Elev. 348 ft)
Last Update:
3:53 pm EST Jan 21, 2026
Forecast Valid:
6pm EST Jan 21, 2026-6pm EST Jan 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation