Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Tuesday

In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding Tuesday. Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota Tuesday afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. Extreme heat returns to the southwest U.S. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

79°F

26°C

Humidity 85%
Wind Speed E 5 mph
Barometer 30.02 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 6 Jul 11:35 pm CDT
Extended Forecast for

3 Miles SW Colbert OK

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm.  Sunny, with a high near 95. Heat index values as high as 103. Light and variable wind.  Chance of precipitation is 20%.

    High: 95 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Light and variable wind.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming south southwest around 6 mph in the morning.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 80. South southeast wind 6 to 8 mph.

    Low: 80 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. Calm wind.
Tuesday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Heat index values as high as 103. Light and variable wind. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 75. Light and variable wind.
Wednesday
Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming south southwest around 6 mph in the morning.
Wednesday Night
Clear, with a low around 80. South southeast wind 6 to 8 mph.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 79.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 79.
Saturday
Sunny, with a high near 96.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 77.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Colbert OK
 33.82°N 96.53°W
2:06 pm CDT Jul 6, 2026
11pm CDT Jul 6, 2026-6pm CDT Jul 13, 2026
 
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