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

30°F

-1°C

Humidity 66%
Wind Speed W 9 mph
Barometer 30.25 in (1026.3 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 12 Jan 4:56 am EST
Extended Forecast for

Gaithersburg MD

  • Today

    Today: Mostly sunny, with a high near 45. West wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. Light west wind.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 50. Southwest wind around 6 mph. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.

    High: 38 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.

    Low: 21 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 45. West wind 6 to 9 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 29. Light west wind.
Tuesday
Mostly sunny, with a high near 48. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 50. Southwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 33.
Friday Night
Mostly clear, with a low around 22.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.13°N 77.24°W (Elev. 400 ft)
Last Update:
3:53 am EST Jan 12, 2026
Forecast Valid:
5am EST Jan 12, 2026-6pm EST Jan 18, 2026
 
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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