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 Rain

45°F

7°C

Humidity 76%
Wind Speed NW 14 mph
Barometer 29.92 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 12 Mar 9:52 am EDT
Extended Forecast for

Glen Arm MD

  • Today

    Today: Rain and snow. High near 49. Breezy, with a northwest wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 49 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light west after midnight.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 49. Breezy, with a south wind 5 to 10 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 49 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. South wind 9 to 15 mph, with gusts as high as 28 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 53. West wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Mostly 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 likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers. High near 65. Chance of precipitation is 90%.

    High: 65 °F

    Showers

Detailed Forecast

Today
Rain and snow. High near 49. Breezy, with a northwest wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light west after midnight.
Friday
Increasing clouds, with a high near 49. Breezy, with a south wind 5 to 10 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 37 mph.
Friday Night
Mostly clear, with a low around 39. South wind 9 to 15 mph, with gusts as high as 28 mph.
Saturday
Mostly sunny, with a high near 53. West wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Monday
Showers. High near 65. Chance of precipitation is 90%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 41.
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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:
8:12 am EDT Mar 12, 2026
Forecast Valid:
10am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation