Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

18°F

-8°C

Humidity 71%
Wind Speed SE 5 mph
Barometer 30.18 in (1024.2 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 16 Dec 12:56 am EST
Extended Forecast for

Potomac MD

  • Overnight

    Overnight: Mostly clear, with a low around 17. Calm wind.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 35. Light and variable wind.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. Light south wind.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 47. Southwest wind around 6 mph.

    High: 47 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain.  Low around 46. Chance of precipitation is 100%.

    Low: 46 °F

    Rain

  • Friday

    Friday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 17. Calm wind.
Tuesday
Sunny, with a high near 35. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 24. Light south wind.
Wednesday
Increasing clouds, with a high near 47. Southwest wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 27. Light and variable wind.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Rain. Low around 46. Chance of precipitation is 100%.
Friday
Mostly sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac MD
 39.02°N 77.2°W (Elev. 381 ft)
12:53 am EST Dec 16, 2025
1am EST Dec 16, 2025-6pm EST Dec 22, 2025
 
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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