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

23°F

-5°C

Humidity 88%
Wind Speed Calm
Barometer 30.13 in (1022.3 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 13 Jan 6:56 am EST
Extended Forecast for

2 Miles S Dayton MD

  • Today

    Today: Sunny, with a high near 49. Calm wind becoming south 5 to 8 mph in the morning.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: A slight chance of rain after 1am. Mostly cloudy, with a low around 39. Southwest wind 6 to 10 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 50. Southwest wind around 6 mph. Chance of precipitation is 50%.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 4am, then a chance of snow. Mostly cloudy, with a low around 24. Light and variable wind becoming northwest 13 to 18 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 24 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow before 7am. Partly sunny, with a high near 29. Northwest wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 29 °F

    Chance Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Calm wind becoming south 5 to 8 mph in the morning.
Tonight
A slight chance of rain after 1am. Mostly cloudy, with a low around 39. Southwest wind 6 to 10 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain. Cloudy, with a high near 50. Southwest wind around 6 mph. Chance of precipitation is 50%.
Wednesday Night
Rain likely before 4am, then a chance of snow. Mostly cloudy, with a low around 24. Light and variable wind becoming northwest 13 to 18 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of snow before 7am. Partly sunny, with a high near 29. Northwest wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 17.
M.L.King Day
Mostly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Dayton MD
 39.2°N 77°W (Elev. 397 ft)
Last Update:
6:53 am EST Jan 13, 2026
Forecast Valid:
7am EST Jan 13, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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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