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

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

23°F

-5°C

Humidity 63%
Wind Speed NW 8 mph
Barometer 30.21 in (1025.0 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 13 Feb 5:56 am EST
Extended Forecast for

Potomac MD

  • Today

    Today: Sunny, with a high near 39. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 39 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 53. Calm wind becoming west 5 to 8 mph in the morning.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain, mainly after 1pm. Cloudy, with a high near 43. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 43 °F

    Slight Chance
    Rain then
    Chance Rain

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all rain after 10pm. Cloudy, with a low around 34. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 39. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 26. Calm wind.
Saturday
Sunny, with a high near 53. Calm wind becoming west 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 32. Calm wind.
Sunday
A chance of rain, mainly after 1pm. Cloudy, with a high near 43. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
Rain and snow likely, becoming all rain after 10pm. Cloudy, with a low around 34. Chance of precipitation is 60%. Little or no snow accumulation expected.
Washington's Birthday
Mostly cloudy, with a high near 45.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac MD
 39.02°N 77.2°W (Elev. 381 ft)
Last Update:
3:53 am EST Feb 13, 2026
Forecast Valid:
6am EST Feb 13, 2026-6pm EST Feb 19, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation