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

52°F

11°C

Humidity 44%
Wind Speed N 20 G 28 mph
Barometer 30.04 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 16 Jan 10:50 am CST
Extended Forecast for

Grayson County Airport TX

  • Today

    Today: Sunny, with a high near 56. North wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. Northwest wind around 10 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of sprinkles after noon. Mostly cloudy, then gradually becoming sunny, with a high near 46. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 46 °F

    Slight Chance
    Sprinkles

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 21. North northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. Southwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 29 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 47. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 23. Northeast wind 5 to 10 mph.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52. East wind 5 to 10 mph becoming south in the afternoon.

    High: 52 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 56. North wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 30. Northwest wind around 10 mph.
Saturday
A slight chance of sprinkles after noon. Mostly cloudy, then gradually becoming sunny, with a high near 46. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 21. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 55. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 29. Southwest wind 5 to 10 mph becoming northeast after midnight.
M.L.King Day
Mostly sunny, with a high near 47. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 23. Northeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 52. East wind 5 to 10 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 56.
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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 am CST Jan 16, 2026
Forecast Valid:
11am CST Jan 16, 2026-6pm CST Jan 22, 2026
 
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