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

43°F

6°C

Humidity 35%
Wind Speed SE 3 mph
Barometer 30.49 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 12 Jan 12:35 am CST
Extended Forecast for

3 Miles SSE Collinsville TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. Calm wind becoming south southwest around 5 mph in the morning.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. South wind around 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. Southwest wind 5 to 10 mph.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. South southwest wind around 5 mph becoming northwest after midnight.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. North wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27. North wind 10 to 15 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the morning.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. South wind around 5 mph becoming northeast after midnight.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. Calm wind.
Monday
Partly sunny, with a high near 63. Calm wind becoming south southwest around 5 mph in the morning.
Monday Night
Mostly cloudy, with a low around 37. South wind around 5 mph.
Tuesday
Partly sunny, with a high near 66. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 42. South southwest wind around 5 mph becoming northwest after midnight.
Wednesday
Mostly sunny, with a high near 59. North wind 10 to 20 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 27. North wind 10 to 15 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 34. South wind around 5 mph becoming northeast after midnight.
Friday
Mostly sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 53.
Saturday Night
Clear, with a low around 29.
Sunday
Sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Collinsville TX
 33.52°N 96.9°W (Elev. 653 ft)
Last Update:
11:21 pm CST Jan 11, 2026
Forecast Valid:
12am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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