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.

Fair

39°F

4°C

Humidity 89%
Wind Speed SE 5 mph
Barometer 30.12 in (1021.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 20 Mar 7:56 am EDT
Extended Forecast for

Ashton MD

  • Today

    Today: Increasing clouds, with a high near 68. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 68 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 48. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 62. North wind around 8 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Southwest wind 5 to 9 mph.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Slight Chance
    Rain then
    Chance Rain

  • Monday

    Monday: A chance of rain before 2pm. Partly sunny, with a high near 59. Chance of precipitation is 40%.

    High: 59 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 68. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Showers likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 48. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 62. North wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 45. Light and variable wind.
Sunday
Partly sunny, with a high near 74. Southwest wind 5 to 9 mph.
Sunday Night
A chance of rain, mainly after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Monday
A chance of rain before 2pm. Partly sunny, with a high near 59. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
Partly sunny, with a high near 63.
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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:
7:53 am EDT Mar 20, 2026
Forecast Valid:
8am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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