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

37°F

3°C

Humidity 57%
Wind Speed Calm
Barometer 30.27 in (1026.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 24 Dec 11:56 pm EST
Extended Forecast for

Colesville MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. Light east wind.

    Low: 34 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: A chance of showers, mainly before 10am. Partly sunny, with a high near 52. South wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 30%.

    High: 52 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 27. North wind around 7 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Friday

    Friday: A slight chance of drizzle, snow, freezing rain, and sleet before 1pm, then freezing rain and sleet likely between 1pm and 4pm, then rain, freezing rain, and sleet likely after 4pm. Cloudy, with a high near 35. Northeast wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

    High: 35 °F

    Slight Chance
    Wintry Mix
    then Wintry
    Mix Likely

  • Friday Night

    Friday Night: Freezing rain and sleet, possibly mixed with rain before 10pm, then freezing rain between 10pm and 1am, then a chance of rain after 1am. Low around 30. Southeast wind around 6 mph. Chance of precipitation is 90%. New sleet accumulation of less than a half inch possible.

    Low: 30 °F

    Wintry Mix

  • Saturday

    Saturday: A slight chance of drizzle before 1pm. Cloudy, with a high near 39.

    High: 39 °F

    Slight Chance
    Drizzle

  • Saturday Night

    Saturday Night: Cloudy, with a low around 32.

    Low: 32 °F

    Cloudy

  • Sunday

    Sunday: A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 40%.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. Light east wind.
Christmas Day
A chance of showers, mainly before 10am. Partly sunny, with a high near 52. South wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 30%.
Thursday Night
Increasing clouds, with a low around 27. North wind around 7 mph.
Friday
A slight chance of drizzle, snow, freezing rain, and sleet before 1pm, then freezing rain and sleet likely between 1pm and 4pm, then rain, freezing rain, and sleet likely after 4pm. Cloudy, with a high near 35. Northeast wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.
Friday Night
Freezing rain and sleet, possibly mixed with rain before 10pm, then freezing rain between 10pm and 1am, then a chance of rain after 1am. Low around 30. Southeast wind around 6 mph. Chance of precipitation is 90%. New sleet accumulation of less than a half inch possible.
Saturday
A slight chance of drizzle before 1pm. Cloudy, with a high near 39.
Saturday Night
Cloudy, with a low around 32.
Sunday
A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 40%.
Sunday Night
Rain likely. Cloudy, with a low around 37. Chance of precipitation is 70%.
Monday
A chance of rain before 1pm. Partly sunny, with a high near 49. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 38.
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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:
9:53 pm EST Dec 24, 2025
Forecast Valid:
12am EST Dec 25, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation