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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Overcast

62°F

17°C

Humidity 39%
Wind Speed S 14 mph
Barometer 29.76 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 1 Jan 11:55 pm CST
Extended Forecast for

Grayson County Airport TX

  • Overnight

    Overnight: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South wind around 10 mph.

    Low: 51 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 70. South southwest wind 5 to 10 mph becoming north northwest in the afternoon.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. North northeast wind 5 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63. North wind 5 to 15 mph.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. North wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49. South southeast wind around 10 mph.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 53. South wind 10 to 15 mph.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South wind around 10 mph.
Friday
Sunny, with a high near 70. South southwest wind 5 to 10 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 46. North northeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 63. North wind 5 to 15 mph.
Saturday Night
Mostly clear, with a low around 38. North wind around 5 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 62. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 49. South southeast wind around 10 mph.
Monday
Mostly sunny, with a high near 73. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 53. South wind 10 to 15 mph.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly cloudy, with a low around 47.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
11:21 pm CST Jan 1, 2026
Forecast Valid:
12am CST Jan 2, 2026-6pm CST Jan 8, 2026
 
Forecast Discussion
 
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