Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest
A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Partly Cloudy
93°F
34°C
| Humidity | 36% |
| Wind Speed | Calm |
| Barometer | 29.96 in |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 94°F (34°C) |
| Last update | 22 Aug 4:50 pm CDT |
Extended Forecast for
Collinsville TX
Tonight
Low: 72 °F
Mostly Clear
Saturday
High: 95 °F
Sunny
Saturday Night
Low: 71 °F
Mostly Clear
Sunday
High: 93 °F
Sunny
Sunday Night
Low: 73 °F
Partly Cloudy
Monday
High: 93 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 69 °F
Mostly Cloudy
then Chance
T-stormsTuesday
High: 81 °F
Showers
LikelyTuesday Night
Low: 66 °F
Chance
Showers
Detailed Forecast
Tonight
Mostly clear, with a low around 72. East northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 95. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. North northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 93. Heat index values as high as 97. Northeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 73. East wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South southeast wind around 5 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. East wind around 5 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. East wind 5 to 10 mph. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 66. East northeast wind 5 to 10 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Collinsville TX
33.55°N 96.9°W (Elev. 696 ft)
33.55°N 96.9°W (Elev. 696 ft)
5:24 pm CDT Aug 22, 2025
6pm CDT Aug 22, 2025-6pm CDT Aug 29, 2025
Additional Resources
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Hourly Weather Forecast
