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

34°F

1°C

Humidity 66%
Wind Speed Calm
Barometer 30.47 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 12 Jan 3:55 am CST
Extended Forecast for

Knollwood TX

  • Today

    Today: Partly sunny, with a high near 62. South southwest wind around 5 mph.

    High: 62 °F

    Partly Sunny

  • Tonight

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

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65. Southwest wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. South southwest wind 5 to 10 mph becoming northwest after midnight.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. North wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 51. North northwest wind around 5 mph becoming south in the afternoon.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. South wind around 5 mph becoming northeast after midnight.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 54. North wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 54 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 62. South southwest wind around 5 mph.
Tonight
Mostly cloudy, with a low around 39. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 65. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 44. South southwest wind 5 to 10 mph becoming northwest after midnight.
Wednesday
Mostly sunny, with a high near 58. North wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 28. North wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 51. North northwest wind around 5 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 35. South wind around 5 mph becoming northeast after midnight.
Friday
Mostly sunny, with a high near 54. North wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 32.
Saturday
Sunny, with a high near 51.
Saturday Night
Clear, with a low around 30.
Sunday
Sunny, with a high near 56.
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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:
11:21 pm CST Jan 11, 2026
Forecast Valid:
4am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation