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

55°F

13°C

Humidity 21%
Wind Speed W 15 G 21 mph
Barometer 30.15 in (1022.4 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 14 Mar 1:56 pm EDT
Extended Forecast for

Dayton MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 53. West wind around 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

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

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57. Southeast wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers. Low around 51. Southeast wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. High near 68. Breezy, with a south wind 15 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.

    High: 68 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain showers before 11pm, then snow showers, possibly mixed with rain between 11pm and 2am, then a slight chance of snow showers after 2am. Some thunder is also possible. Low around 27. Breezy. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 27 °F

    Rain/Snow and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly 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 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 53. West wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 37. Calm wind becoming east around 5 mph after midnight.
Sunday
Partly sunny, with a high near 57. Southeast wind 8 to 15 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 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers, with thunderstorms also possible after 11am. High near 68. Breezy, with a south wind 15 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Monday Night
Rain showers before 11pm, then snow showers, possibly mixed with rain between 11pm and 2am, then a slight chance of snow showers after 2am. Some thunder is also possible. Low around 27. Breezy. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dayton MD
 39.24°N 76.99°W (Elev. 568 ft)
Last Update:
1:53 pm EDT Mar 14, 2026
Forecast Valid:
2pm EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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