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

48°F

9°C

Humidity 36%
Wind Speed W 10 mph
Barometer 29.86 in (1012.6 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 14 Mar 3:56 am EDT
Extended Forecast for

Dayton MD

  • Today

    Today: Sunny, with a high near 53. West wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. Calm wind becoming east around 5 mph after midnight.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 57. Southeast wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 57 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers. Low around 51. Southeast wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Showers
    Likely then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 69. Breezy, with a south wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%.

    High: 69 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain showers likely, mixing with snow after 11pm, then gradually ending. Some thunder is also possible. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 28 °F

    Rain/Snow
    Likely and
    Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. West wind 13 to 16 mph, with gusts as high as 28 mph.
Tonight
Increasing clouds, with a low around 37. Calm wind becoming east around 5 mph after midnight.
Sunday
Mostly cloudy, with a high near 57. Southeast wind 8 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Showers. Low around 51. Southeast wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 69. Breezy, with a south wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%.
Monday Night
Rain showers likely, mixing with snow after 11pm, then gradually ending. Some thunder is also possible. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton MD
 39.24°N 76.99°W (Elev. 568 ft)
Last Update:
1:53 am EDT Mar 14, 2026
Forecast Valid:
4am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation