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

69°F

21°C

Humidity 44%
Wind Speed SE 6 mph
Barometer 29.99 in (1016.8 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 10 Mar 9:56 pm EDT
Extended Forecast for

Garrett Park MD

  • Tonight

    Tonight: Partly cloudy, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 79. South wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers after 2am. Low around 44. South wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Rain showers before 5pm, then a slight chance of rain and snow showers. High near 52. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 52 °F

    Showers and
    Breezy then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. South wind around 6 mph.
Wednesday
A chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 79. South wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms, then showers after 2am. Low around 44. South wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers before 5pm, then a slight chance of rain and snow showers. High near 52. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 32. Northwest wind 5 to 9 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Mostly cloudy, with a high near 65.
Sunday Night
Showers. Low around 51. Chance of precipitation is 80%.
Monday
Showers. High near 60. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow showers. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Garrett Park MD
 39.05°N 77.08°W (Elev. 351 ft)
Last Update:
10:01 pm EDT Mar 10, 2026
Forecast Valid:
10pm EDT Mar 10, 2026-6pm EDT Mar 17, 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