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

58°F

14°C

Humidity 50%
Wind Speed W 3 mph
Barometer 30.12 in (1021.3 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 9 Mar 9:56 am EDT
Extended Forecast for

2 Miles NW Potomac MD

  • Today

    Today: Sunny, with a high near 72. Calm wind becoming south around 6 mph in the afternoon.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. South wind 3 to 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 78. South wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 78 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain and thunderstorms, then rain likely after 8pm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Chance Rain
    then Rain
    Likely

  • Thursday

    Thursday: Rain likely, mainly before 2pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely
    and Breezy

  • Thursday Night

    Thursday Night: A chance of rain before 8pm. Mostly clear, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 72. Calm wind becoming south around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 47. Calm wind.
Tuesday
Sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 59. South wind 3 to 5 mph.
Wednesday
A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 78. South wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and thunderstorms, then rain likely after 8pm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Thursday
Rain likely, mainly before 2pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 60%.
Thursday Night
A chance of rain before 8pm. Mostly clear, with a low around 33. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Potomac MD
 39.04°N 77.23°W (Elev. 249 ft)
Last Update:
7:53 am EDT Mar 9, 2026
Forecast Valid:
10am EDT Mar 9, 2026-6pm EDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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