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

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Fair

48°F

9°C

Humidity 62%
Wind Speed S 5 mph
Barometer 30.20 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 19 Mar 6:46 pm EDT
Extended Forecast for

2 Miles SW Glen Arm MD

  • Tonight

    Tonight: Partly cloudy, with a low around 35. South wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Scattered showers after 2pm. Increasing clouds, with a high near 62. Light southeast wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 62 °F

    Sunny then
    Scattered
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Southwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Northwest wind around 7 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: A chance of rain before 8am. Partly sunny, with a high near 59. Chance of precipitation is 30%.

    High: 59 °F

    Chance Rain
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. South wind around 5 mph becoming calm in the evening.
Friday
Scattered showers after 2pm. Increasing clouds, with a high near 62. Light southeast wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Friday Night
Showers likely, mainly between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Southwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 64. Northwest wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 44. Calm wind.
Sunday
Partly sunny, with a high near 69.
Sunday Night
A chance of rain after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Monday
A chance of rain before 8am. Partly sunny, with a high near 59. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Glen Arm MD
 39.44°N 76.53°W (Elev. 312 ft)
Last Update:
4:53 pm EDT Mar 19, 2026
Forecast Valid:
7pm EDT Mar 19, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation