Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

36°F

2°C

Humidity 31%
Wind Speed S 8 mph
Barometer 30.00 in (1017.9 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 17 Jan 1:56 am EST
Extended Forecast for

Potomac MD

  • Overnight

    Overnight: A slight chance of light snow after 4am.  Cloudy, with a low around 33. South wind around 8 mph.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Light Snow

  • Saturday

    Saturday: Rain, snow, and sleet likely before noon, then a slight chance of rain between noon and 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 45. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 60%. Little or no snow and sleet accumulation expected.

    High: 45 °F

    Wintry Mix
    Likely then
    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 31. Calm wind becoming northwest around 6 mph after midnight.

    Low: 31 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of light snow.  Mostly cloudy, with a high near 34. Northwest wind 5 to 8 mph.  Chance of precipitation is 40%.

    High: 34 °F

    Chance Light
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 20 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of light snow after 4am. Cloudy, with a low around 33. South wind around 8 mph. Chance of precipitation is 20%.
Saturday
Rain, snow, and sleet likely before noon, then a slight chance of rain between noon and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 45. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%. Little or no snow and sleet accumulation expected.
Saturday Night
Increasing clouds, with a low around 31. Calm wind becoming northwest around 6 mph after midnight.
Sunday
A chance of light snow. Mostly cloudy, with a high near 34. Northwest wind 5 to 8 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 20. Northwest wind 5 to 7 mph becoming calm in the evening.
M.L.King Day
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac MD
 39.02°N 77.2°W (Elev. 381 ft)
12:53 am EST Jan 17, 2026
2am EST Jan 17, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

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