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.

Mostly Cloudy

47°F

8°C

Humidity 41%
Wind Speed SW 3 mph
Barometer 29.68 in (1006.7 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 14 Jan 4:56 am EST
Extended Forecast for

Colesville MD

  • Today

    Today: A chance of rain before 11am, then a slight chance of rain after 5pm. Cloudy, with a high near 51. South wind around 7 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain
    then Cloudy

  • Tonight

    Tonight: Rain likely, possibly mixed with snow before 3am, then a slight chance of snow between 3am and 4am. Cloudy, with a low around 24. Blustery, with a west wind 7 to 12 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 24 °F

    Chance Rain
    then
    Rain/Snow
    Likely and
    Blustery

  • Thursday

    Thursday: Mostly sunny, with a high near 29. West wind around 18 mph, with gusts as high as 32 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18. West wind 10 to 15 mph, with gusts as high as 28 mph.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 35. West wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain and snow before 1pm. Partly sunny, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Today
A chance of rain before 11am, then a slight chance of rain after 5pm. Cloudy, with a high near 51. South wind around 7 mph. Chance of precipitation is 30%.
Tonight
Rain likely, possibly mixed with snow before 3am, then a slight chance of snow between 3am and 4am. Cloudy, with a low around 24. Blustery, with a west wind 7 to 12 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Mostly sunny, with a high near 29. West wind around 18 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 18. West wind 10 to 15 mph, with gusts as high as 28 mph.
Friday
Mostly sunny, with a high near 35. West wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Partly cloudy, with a low around 28.
Saturday
A chance of rain and snow before 1pm. Partly sunny, with a high near 43. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 18.
M.L.King Day
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Colesville MD
 39.11°N 77.02°W (Elev. 436 ft)
Last Update:
5:11 am EST Jan 14, 2026
Forecast Valid:
5am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation