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

40°F

4°C

Humidity 51%
Wind Speed Vrbl 6 mph
Barometer 30.42 in (1031.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 1 Dec 9:56 am EST
Extended Forecast for

Brookeville MD

  • Today

    Today: Mostly sunny, with a high near 42. North wind 5 to 9 mph becoming light in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 5am. Increasing clouds, with a low around 27. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 10am. High near 38. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 39. Northwest wind 3 to 6 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.

    High: 32 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 42. North wind 5 to 9 mph becoming light in the afternoon.
Tonight
Snow likely, mainly after 5am. Increasing clouds, with a low around 27. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
Rain and snow, becoming all rain after 10am. High near 38. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind around 9 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 39. Northwest wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 24.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 18.
Friday
A chance of snow after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.
Friday Night
A chance of snow before 1am, then freezing rain likely. Cloudy, with a low around 27. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brookeville MD
 39.18°N 77.06°W (Elev. 446 ft)
Last Update:
9:53 am EST Dec 1, 2025
Forecast Valid:
10am EST Dec 1, 2025-6pm EST Dec 7, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation