Tracking Two Storms Impacting the Northern U.S. Through Thanksgiving and into This Weekend

Heavy lake effect snow, gusty winds, and localized blizzard conditions will persist through Thanksgiving near and downwind of the Great Lakes. Rain and mountain snow are forecast for the Pacific Northwest. Confidence is increasing for another winter storm to develop over the northern and central Rockies Friday and track across the central Plains through the Midwest and Great Lakes this weekend. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

43°F

6°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 30.42 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 28 Nov 2:55 am CST
Extended Forecast for

Grayson County Airport TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. South southeast wind around 5 mph.

    Low: 39 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 57. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 57 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 47. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: Showers likely before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers likely after 3pm.  Cloudy through mid morning, then gradual clearing, with a high near 63. South wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. North wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 42. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. Northeast wind around 10 mph.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after noon.  Mostly cloudy, with a high near 40. East wind 5 to 10 mph.

    High: 40 °F

    Cloudy then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. North wind around 5 mph.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. South southeast wind around 5 mph.
Friday
Mostly cloudy, with a high near 57. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 47. South southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers likely after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 63. South wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly clear, with a low around 29. North wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 42. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 31. Northeast wind around 10 mph.
Monday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 40. East wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 26. North wind around 5 mph.
Tuesday
Sunny, with a high near 47.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
11:21 pm CST Nov 27, 2025
3am CST Nov 28, 2025-6pm CST Dec 4, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database