Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Rain

59°F

15°C

Humidity NA
Wind Speed Calm
Barometer 30.23 in (1024.8 mb)
Dewpoint N/A
Visibility 4.00 mi
Last update 4 Oct 4:56 am EDT
Extended Forecast for

Colesville MD

  • Overnight

    Overnight: A chance of showers.  Cloudy, with a low around 57. East wind around 6 mph.  Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before noon.  Cloudy, with a high near 64. Northeast wind 3 to 7 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.

    High: 68 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Northwest wind around 6 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers. Cloudy, with a low around 57. East wind around 6 mph. Chance of precipitation is 30%.
Sunday
Showers likely, mainly before noon. Cloudy, with a high near 64. Northeast wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Cloudy, with a low around 56. Calm wind.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Monday Night
Clear, with a low around 44. Northwest wind around 6 mph.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Clear, with a low around 45.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Colesville MD
 39.11°N 77.02°W (Elev. 436 ft)
4:52 am EDT Oct 4, 2026
5am EDT Oct 4, 2026-6pm EDT Oct 10, 2026
 
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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