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.

Fair

24°F

-4°C

Humidity 60%
Wind Speed W 10 mph
Barometer 29.94 in (1016.0 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 31 Dec 6:56 am EST
Extended Forecast for

Olney MD

  • Today

    Today: A chance of flurries before 11am. Partly sunny, with a high near 37. West wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 37 °F

    Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries with a slight chance of snow before 4am, then a chance of flurries between 4am and 5am. Mostly cloudy, with a low around 24. Southwest wind 5 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Snow

  • New Year's Day

    New Year's Day: A chance of flurries before 7am. Sunny, with a high near 31. Northwest wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 31 °F

    Chance
    Flurries

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 37. Calm wind becoming southwest around 6 mph in the morning.

    High: 37 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of flurries before 11am. Partly sunny, with a high near 37. West wind 7 to 13 mph, with gusts as high as 22 mph.
Tonight
A chance of flurries with a slight chance of snow before 4am, then a chance of flurries between 4am and 5am. Mostly cloudy, with a low around 24. Southwest wind 5 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
New Year's Day
A chance of flurries before 7am. Sunny, with a high near 31. Northwest wind 13 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 19. Northwest wind 5 to 7 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 37. Calm wind becoming southwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Olney MD
 39.16°N 77.06°W (Elev. 486 ft)
Last Update:
6:53 am EST Dec 31, 2025
Forecast Valid:
7am EST Dec 31, 2025-6pm EST Jan 6, 2026
 
Forecast Discussion
 
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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