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

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

37°F

3°C

Humidity 45%
Wind Speed Calm
Barometer 29.78 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 2 Jan 3:15 pm EST
Extended Forecast for

Barstow MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. Calm wind becoming north around 5 mph after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 37. North wind around 5 mph becoming calm in the afternoon.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 25. Calm wind. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Sunny, with a high near 41. Light northwest wind increasing to 5 to 10 mph in the morning.

    High: 41 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. Northwest wind 3 to 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 24. Calm wind becoming north around 5 mph after midnight.
Saturday
Mostly cloudy, with a high near 37. North wind around 5 mph becoming calm in the afternoon.
Saturday Night
A slight chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 25. Calm wind. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 41. Light northwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 23. Northwest wind 3 to 6 mph.
Monday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 55.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
A chance of rain. Partly sunny, with a high near 60. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Barstow MD
 38.51°N 76.63°W (Elev. 56 ft)
Last Update:
12:53 pm EST Jan 2, 2026
Forecast Valid:
3pm EST Jan 2, 2026-6pm EST Jan 9, 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