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 / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

White Marsh MD

  • Overnight

    Overnight: Clear, with a low around 13. Calm wind.

    Low: 13 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 37. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 24 mph.

    High: 37 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southwest wind 8 to 10 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Southwest wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. West wind 5 to 7 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 19.

    High: 19 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 13. Chance of precipitation is 80%.

    Low: 13 °F

    Chance Snow
    then Snow

Detailed Forecast

Overnight
Clear, with a low around 13. Calm wind.
Wednesday
Increasing clouds, with a high near 37. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 24 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southwest wind 8 to 10 mph.
Thursday
Mostly sunny, with a high near 48. Southwest wind 7 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 26. West wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
Mostly cloudy, with a high near 19.
Saturday Night
Snow, mainly after 1am. Low around 13. Chance of precipitation is 80%.
Sunday
Snow. High near 20. Chance of precipitation is 90%.
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 26.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
White Marsh MD
 39.39°N 76.48°W (Elev. 157 ft)
Last Update:
3:25 am EST Jan 21, 2026
Forecast Valid:
3am EST Jan 21, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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