National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fog/Mist

43°F

6°C

Humidity NA
Wind Speed S 7 mph
Barometer 29.74 in (1008.8 mb)
Dewpoint N/A
Visibility 2.50 mi
Wind Chill39°F (4°C)
Last update 28 Dec 11:56 pm EST
Extended Forecast for

Ashton MD

Wind Advisory December 29, 09:00am until December 30, 01:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Patchy fog before 1am. Otherwise, cloudy, with a low around 39. South wind 10 to 14 mph, with gusts as high as 26 mph.

    Low: 39 °F

    Patchy Fog

  • Monday

    Monday: A chance of rain before 11am. Cloudy through mid morning, then gradual clearing, with a temperature rising to near 56 by 11am, then falling to around 39 during the remainder of the day. Windy, with a southwest wind 17 to 22 mph becoming west 26 to 31 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 50%.

    High: 56 °F⇓

    Chance Rain
    and Breezy
    then Mostly
    Sunny and
    Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Windy, with a west wind 23 to 26 mph, with gusts as high as 49 mph.

    Low: 25 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. Breezy, with a west wind 17 to 24 mph, with gusts as high as 37 mph.

    High: 34 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. West wind 7 to 10 mph, with gusts as high as 24 mph.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog before 1am. Otherwise, cloudy, with a low around 39. South wind 10 to 14 mph, with gusts as high as 26 mph.
Monday
A chance of rain before 11am. Cloudy through mid morning, then gradual clearing, with a temperature rising to near 56 by 11am, then falling to around 39 during the remainder of the day. Windy, with a southwest wind 17 to 22 mph becoming west 26 to 31 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 25. Windy, with a west wind 23 to 26 mph, with gusts as high as 49 mph.
Tuesday
Mostly sunny, with a high near 34. Breezy, with a west wind 17 to 24 mph, with gusts as high as 37 mph.
Tuesday Night
Partly cloudy, with a low around 24. West wind 7 to 10 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Mostly cloudy, with a low around 25.
New Year's Day
Mostly cloudy, with a high near 35.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ashton MD
 39.15°N 77.01°W (Elev. 449 ft)
Last Update:
10:08 pm EST Dec 28, 2025
Forecast Valid:
12am EST Dec 29, 2025-6pm EST Jan 4, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation