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

Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy with Haze

36°F

2°C

Humidity NA
Wind Speed Calm
Barometer 30.24 in (1025.8 mb)
Dewpoint N/A
Visibility 5.00 mi
Last update 20 Nov 12:56 am EST
Extended Forecast for

3 Miles SSE Damascus MD

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Patchy Fog
    then Cloudy

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: A chance of rain, mainly after 1pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 55. Calm wind becoming south around 5 mph. Chance of precipitation is 40%.

    High: 55 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: Rain. Low around 46. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 80%.

    Low: 46 °F

    Rain

  • Saturday

    Saturday: A chance of rain before 1pm. Partly sunny, with a high near 54. Chance of precipitation is 30%.

    High: 54 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, cloudy, with a high near 48. Calm wind.
Thursday Night
Patchy fog. Otherwise, cloudy, with a low around 41. Calm wind.
Friday
A chance of rain, mainly after 1pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 55. Calm wind becoming south around 5 mph. Chance of precipitation is 40%.
Friday Night
Rain. Low around 46. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 80%.
Saturday
A chance of rain before 1pm. Partly sunny, with a high near 54. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
A chance of rain. Mostly cloudy, with a high near 54. Chance of precipitation is 40%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Damascus MD
 39.24°N 77.19°W (Elev. 551 ft)
Last Update:
12:52 am EST Nov 20, 2025
Forecast Valid:
1am EST Nov 20, 2025-6pm EST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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