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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Fair

45°F

7°C

Humidity 59%
Wind Speed N 6 mph
Barometer 30.44 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 17 Oct 10:15 pm EDT
Extended Forecast for

Glen Arm MD

Freeze Warning October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Clear, with a low around 37. North wind around 8 mph.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 59. North wind around 7 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Calm wind.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64. North wind 6 to 9 mph.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. North wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 37. North wind around 8 mph.
Sunday
Sunny, with a high near 59. North wind around 7 mph.
Sunday Night
Clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 64. North wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 45. North wind 6 to 10 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 63.
Basemap Options
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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:
9:30 pm EDT Oct 17, 2026
Forecast Valid:
10pm EDT Oct 17, 2026-6pm EDT Oct 24, 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