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.

Overcast

63°F

17°C

Humidity 77%
Wind Speed SW 3 mph
Barometer 30.18 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 9 Nov 6:50 pm CST
Extended Forecast for

Collinsville TX

  • Tonight

    Tonight: A slight chance of sprinkles before midnight, then a slight chance of showers after midnight. Cloudy, with a low around 57. South southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 57 °F

    Cloudy then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of sprinkles before 9am. Patchy fog before 9am. Otherwise, cloudy, with a high near 75. Light south southwest wind becoming southwest 5 to 10 mph in the morning.

    High: 75 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56. South wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 79. Light and variable wind becoming north northwest 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 50. North northwest wind around 5 mph.

    Low: 50 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 71. North northwest wind around 5 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47. Calm wind.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69. Calm wind becoming east northeast around 5 mph in the morning.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 46. East southeast wind around 5 mph.

    Low: 46 °F

    Clear

Detailed Forecast

Tonight
A slight chance of sprinkles before midnight, then a slight chance of showers after midnight. Cloudy, with a low around 57. South southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Tuesday
A slight chance of sprinkles before 9am. Patchy fog before 9am. Otherwise, cloudy, with a high near 75. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
Clear, with a low around 56. South wind around 5 mph becoming calm after midnight.
Veterans Day
Sunny, with a high near 79. Light and variable wind becoming north northwest 5 to 10 mph in the morning.
Wednesday Night
Clear, with a low around 50. North northwest wind around 5 mph.
Thursday
Sunny, with a high near 71. North northwest wind around 5 mph.
Thursday Night
Clear, with a low around 47. Calm wind.
Friday
Sunny, with a high near 69. Calm wind becoming east northeast around 5 mph in the morning.
Friday Night
Clear, with a low around 46. East southeast wind around 5 mph.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Collinsville TX
 33.55°N 96.9°W (Elev. 696 ft)
Last Update:
5:21 pm CST Nov 9, 2026
Forecast Valid:
6pm CST Nov 9, 2026-6pm CST Nov 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation