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.

A Few Clouds

69°F

21°C

Humidity 55%
Wind Speed NE 7 mph
Barometer 29.65 in (1005.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 22 Mar 10:56 pm EDT
Extended Forecast for

Ashton MD

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 49. West wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers

  • Monday

    Monday: Showers, mainly before 9am. High near 57. Northwest wind 9 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. North wind 5 to 8 mph becoming light and variable.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Calm wind becoming south around 5 mph after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Tonight
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 49. West wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers, mainly before 9am. High near 57. Northwest wind 9 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 31. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 50. North wind 5 to 8 mph becoming light and variable.
Tuesday Night
Mostly cloudy, with a low around 35. Calm wind becoming south around 5 mph after midnight.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Mostly cloudy, with a high near 65.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ashton MD
 39.15°N 77.01°W (Elev. 449 ft)
Last Update:
10:53 pm EDT Mar 22, 2026
Forecast Valid:
11pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation