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

Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

41°F

5°C

Humidity 53%
Wind Speed S 3 mph
Barometer 30.17 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 10 Dec 8:55 pm CST
Extended Forecast for

Grayson County Airport TX

  • Tonight

    Tonight: Clear, with a low around 35. Calm wind becoming south around 5 mph after midnight.

    Low: 35 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 63. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. South southwest wind around 10 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. South southwest wind 5 to 10 mph becoming north northeast in the afternoon.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. North northeast wind 5 to 10 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 60. Northeast wind around 5 mph becoming south in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. East wind 5 to 15 mph becoming north northeast after midnight.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48. North northeast wind 10 to 15 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Northeast wind 5 to 10 mph becoming southeast after midnight.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 35. Calm wind becoming south around 5 mph after midnight.
Thursday
Sunny, with a high near 63. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 43. South southwest wind around 10 mph.
Friday
Sunny, with a high near 64. South southwest wind 5 to 10 mph becoming north northeast in the afternoon.
Friday Night
Mostly clear, with a low around 37. North northeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 60. Northeast wind around 5 mph becoming south in the afternoon.
Saturday Night
Mostly clear, with a low around 33. East wind 5 to 15 mph becoming north northeast after midnight.
Sunday
Sunny, with a high near 48. North northeast wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 30. Northeast wind 5 to 10 mph becoming southeast after midnight.
Monday
Partly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Mostly cloudy, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 48.
Wednesday
Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
5:06 pm CST Dec 10, 2025
Forecast Valid:
9pm CST Dec 10, 2025-6pm CST Dec 17, 2025
 
Forecast Discussion
 
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Additional Resources

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