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

39°F

4°C

Humidity 90%
Wind Speed SE 3 mph
Barometer 30.28 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 8 Jan 9:15 pm EST
Extended Forecast for

Barstow MD

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: A chance of rain, mainly after 5pm. Mostly cloudy, with a high near 59. South wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 59 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain, mainly after 1am. Patchy fog before 9pm, then patchy fog after 3am. Low around 47. South wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain and
    Patchy Fog

  • Saturday

    Saturday: Rain. Patchy fog before 7am. High near 59. Northeast wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 59 °F

    Rain and
    Patchy Fog

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 43. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 43 °F

    Rain

  • Sunday

    Sunday: A chance of rain before 1pm, then a slight chance of rain and snow. Partly sunny, with a high near 52. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday Night

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

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44.

    High: 44 °F

    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 37. Calm wind becoming southeast around 5 mph after midnight.
Friday
A chance of rain, mainly after 5pm. Mostly cloudy, with a high near 59. South wind 5 to 10 mph. Chance of precipitation is 30%.
Friday Night
Rain, mainly after 1am. Patchy fog before 9pm, then patchy fog after 3am. Low around 47. South wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. Patchy fog before 7am. High near 59. Northeast wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Rain, mainly before 1am. Low around 43. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 80%.
Sunday
A chance of rain before 1pm, then a slight chance of rain and snow. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 49.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 41. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Barstow MD
 38.53°N 76.63°W (Elev. 151 ft)
Last Update:
8:57 pm EST Jan 8, 2026
Forecast Valid:
9pm EST Jan 8, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation