Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Mostly Cloudy
72°F
22°C
| Humidity | 94% |
| Wind Speed | S 7 mph |
| Barometer | 29.94 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Last update | 22 Jun 7:50 am CDT |
Extended Forecast for
2 Miles SE Collinsville TX
Today
High: 89 °F
Severe
Thunderstorms
then Chance
T-stormsTonight
Low: 76 °F
Chance
T-stormsTuesday
High: 91 °F
Slight Chance
T-stormsTuesday Night
Low: 78 °F
Mostly Clear
Wednesday
High: 93 °F
Mostly Sunny
Wednesday Night
Low: 76 °F
Mostly Clear
then Slight
Chance
T-stormsThursday
High: 93 °F
Mostly Sunny
Thursday Night
Low: 78 °F
Partly Cloudy
Friday
High: 95 °F
Mostly Sunny
Detailed Forecast
Today
Showers and thunderstorms, mainly before 10am. Some of the storms could be severe. High near 89. Heat index values as high as 100. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 76. Southeast wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 91. Heat index values as high as 102. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 93. South wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 76. South wind around 10 mph.
Thursday
Mostly sunny, with a high near 93. South wind around 10 mph.
Thursday Night
Partly cloudy, with a low around 78. South wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 95. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 78.
Saturday
Mostly sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Mostly sunny, with a high near 97.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SE Collinsville TX
33.55°N 96.9°W (Elev. 696 ft)
33.55°N 96.9°W (Elev. 696 ft)
9:11 am CDT Jun 22, 2026
9am CDT Jun 22, 2026-6pm CDT Jun 28, 2026
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