National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

41°F

5°C

Humidity 45%
Wind Speed NW 3 mph
Barometer 29.74 in (1008.6 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 17 Nov 1:56 am EST
Extended Forecast for

Colesville MD

  • Overnight

    Overnight: Mostly clear, with a low around 35. West wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 48. Northwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. West wind 5 to 7 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain after 1pm. Increasing clouds, with a high near 46. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 46 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 1am. Low around 39. Light and variable wind. Chance of precipitation is 80%.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 41.

    Low: 41 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Cloudy, with a low around 46. Chance of precipitation is 40%.

    Low: 46 °F

    Cloudy then
    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 35. West wind 6 to 10 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 48. Northwest wind 11 to 17 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 31. West wind 5 to 7 mph.
Tuesday
A chance of rain after 1pm. Increasing clouds, with a high near 46. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Tuesday Night
Rain, mainly before 1am. Low around 39. Light and variable wind. Chance of precipitation is 80%.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Cloudy, with a low around 41.
Thursday
Cloudy, with a high near 51.
Thursday Night
A chance of rain after 1am. Cloudy, with a low around 46. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Saturday
A chance of rain. Partly sunny, with a high near 56. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Colesville MD
 39.09°N 76.99°W (Elev. 354 ft)
Last Update:
2:00 am EST Nov 17, 2025
Forecast Valid:
2am EST Nov 17, 2025-6pm EST Nov 23, 2025
 
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