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

61°F

16°C

Humidity NA
Wind Speed Calm
Barometer 30.00 in (1016.9 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 23 Jun 11:56 pm EDT
Extended Forecast for

2 Miles NNW Brookeville MD

  • Overnight

    Overnight: Mostly clear, with a low around 59. North wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Northwest wind 5 to 7 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. South wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 90%.

    Low: 67 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 59. North wind 3 to 6 mph.
Wednesday
Sunny, with a high near 81. Northwest wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 60. Calm wind.
Thursday
Mostly sunny, with a high near 86. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. South wind 3 to 6 mph. Chance of precipitation is 20%.
Friday
Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Friday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 66.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Brookeville MD
 39.2°N 77.06°W (Elev. 400 ft)
Last Update:
10:52 pm EDT Jun 23, 2026
Forecast Valid:
12am EDT Jun 24, 2026-6pm EDT Jun 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation