
Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.
Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >
Hazardous Weather Conditions
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Fair
86°F
30°C
| Humidity | 59% |
| Wind Speed | S 10 mph |
| Barometer | 30.19 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 91°F (33°C) |
| Last update | 16 Sep 8:50 am CDT |
Extended Forecast for
Cartwright OK
Heat Advisory September 16, 12:00pm until September 16, 07:00pm
Today

High: 98 °F
Hot
Tonight

Low: 79 °F
Mostly Clear
Thursday

High: 96 °F
Mostly Sunny
Thursday Night

Low: 79 °F
Mostly Clear
Friday

High: 96 °F
Sunny
Friday Night

Low: 78 °F
Mostly Clear
Saturday

High: 97 °F
Hot
Saturday Night

Low: 77 °F
Clear
Sunday

High: 96 °F
Sunny
Detailed Forecast
Today
Sunny and hot, with a high near 98. Heat index values as high as 103. South southeast wind around 8 mph.
Tonight
Mostly clear, with a low around 79. Southeast wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 96. Heat index values as high as 102. South southeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 79. Southeast wind around 6 mph.
Friday
Sunny, with a high near 96. South wind 5 to 7 mph.
Friday Night
Mostly clear, with a low around 78.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Clear, with a low around 77.
Sunday
Sunny, with a high near 96.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Cartwright OK
33.87°N 96.58°W
33.87°N 96.58°W
1:32 am CDT Sep 16, 2026
9am CDT Sep 16, 2026-6pm CDT Sep 22, 2026



