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

70°F

21°C

Humidity 73%
Wind Speed Calm
Barometer 30.09 in (1019.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Aug 8:56 pm EDT
Extended Forecast for

Brookeville MDSimilar City Names

  • Tonight

    Tonight: A chance of showers after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 77. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. Northwest wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%.
Saturday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 77. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 5 to 9 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 60. Northwest wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Brookeville MDSimilar City Names
 39.18°N 77.06°W (Elev. 446 ft)
Last Update:
7:52 pm EDT Aug 21, 2026
Forecast Valid:
9pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

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