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

Hazardous Weather Conditions

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Light Snow

34°F

1°C

Humidity 93%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 32°F (0°C)
Visibility 1.25 mi
Last update 12 Mar 2:54 pm EDT
Extended Forecast for

Glen Arm MD

  • This Afternoon

    This Afternoon: Snow likely, possibly mixed with rain. Cloudy, with a high near 48. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 48 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 21 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 51. Breezy, with a light south wind increasing to 16 to 21 mph in the morning. Winds could gust as high as 37 mph.

    High: 51 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. West wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 53. West wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 100%.

    High: 65 °F

    Showers

Detailed Forecast

This Afternoon
Snow likely, possibly mixed with rain. Cloudy, with a high near 48. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 21 mph.
Friday
Mostly sunny, with a high near 51. Breezy, with a light south wind increasing to 16 to 21 mph in the morning. Winds could gust as high as 37 mph.
Friday Night
Mostly clear, with a low around 39. West wind 10 to 14 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 53. West wind 11 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
Showers, mainly after 2am. Low around 50. Chance of precipitation is 90%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 29. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Glen Arm MD
 39.44°N 76.53°W (Elev. 312 ft)
Last Update:
1:53 pm EDT Mar 12, 2026
Forecast Valid:
3pm EDT Mar 12, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation