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

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

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.20 in (1024.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 3 Oct 6:56 am EDT
Extended Forecast for

Damascus MD

  • Today

    Today: Mostly cloudy, with a high near 66. North wind 6 to 9 mph.

    High: 66 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers, mainly after 5am. Increasing clouds, with a low around 57. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers before 3pm, then showers likely after 4pm. High near 64. East wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers

  • Sunday Night

    Sunday Night: Cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 66. North wind 6 to 9 mph.
Tonight
A chance of showers, mainly after 5am. Increasing clouds, with a low around 57. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
Showers before 3pm, then showers likely after 4pm. High near 64. East wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Cloudy, with a low around 57. Calm wind.
Monday
Mostly sunny, with a high near 68. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Monday Night
Clear, with a low around 45.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.27°N 77.22°W (Elev. 699 ft)
Last Update:
4:53 am EDT Oct 3, 2026
Forecast Valid:
7am EDT Oct 3, 2026-6pm EDT Oct 9, 2026
 
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