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

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

40°F

4°C

Humidity 45%
Wind Speed Calm
Barometer 30.61 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 22 Feb 8:35 pm CST
Extended Forecast for

Knollwood TX

  • Tonight

    Tonight: Mostly clear, with a low around 29. North northeast wind around 5 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. North northeast wind around 5 mph becoming calm in the afternoon.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69. South southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. South wind 5 to 15 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. South southeast wind 5 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 69. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 42. North wind 5 to 10 mph becoming southeast after midnight.

    Low: 42 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 29. North northeast wind around 5 mph.
Monday
Sunny, with a high near 55. North northeast wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 40. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 69. South southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 54. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 78. South wind 5 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 54. South southeast wind 5 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 69. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 42. North wind 5 to 10 mph becoming southeast after midnight.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Knollwood TX
 33.69°N 96.63°W (Elev. 846 ft)
Last Update:
5:07 pm CST Feb 22, 2026
Forecast Valid:
8pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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