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

50°F

10°C

Humidity 22%
Wind Speed W 17 G 23 mph
Barometer 29.91 in (1014.4 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 14 Mar 5:56 am EDT
Extended Forecast for

Glenelg MD

  • Today

    Today: Sunny, with a high near 53. West wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 57. Southeast wind 8 to 17 mph, with gusts as high as 26 mph.

    High: 57 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers. Low around 50. Southeast wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 68. Breezy, with a south wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%.

    High: 68 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain showers likely, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 27. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 27 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. Breezy.

    High: 35 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. West wind 13 to 17 mph, with gusts as high as 28 mph.
Tonight
Mostly cloudy, with a low around 36. Light and variable wind.
Sunday
Mostly cloudy, with a high near 57. Southeast wind 8 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Showers. Low around 50. Southeast wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 68. Breezy, with a south wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%.
Monday Night
Rain showers likely, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 27. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday
Partly sunny, with a high near 35. Breezy.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Glenelg MD
 39.29°N 77.01°W (Elev. 600 ft)
Last Update:
4:53 am EDT Mar 14, 2026
Forecast Valid:
6am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation