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.

Mostly Cloudy

63°F

17°C

Humidity 35%
Wind Speed S 12 mph
Barometer 29.85 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 1 Jan 7:35 pm CST
Extended Forecast for

Denison TX

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 52. South wind 5 to 10 mph.

    Low: 52 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 69. South southwest wind around 5 mph becoming north northwest in the afternoon.

    High: 69 °F

    Sunny

  • Friday Night

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

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62. North wind 5 to 10 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. North wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 63. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49. South southeast wind 5 to 10 mph.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 71. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54. South wind around 10 mph.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 52. South wind 5 to 10 mph.
Friday
Sunny, with a high near 69. South southwest wind around 5 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 46. North wind around 5 mph.
Saturday
Sunny, with a high near 62. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 38. North wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 63. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 49. South southeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 71. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 54. South wind around 10 mph.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
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:
Denison TX
 33.75°N 96.55°W (Elev. 758 ft)
Last Update:
5:07 pm CST Jan 1, 2026
Forecast Valid:
7pm CST Jan 1, 2026-6pm CST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation