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

82°F

28°C

Humidity 84%
Wind Speed S 13 mph
Barometer 30.13 in
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index90°F (32°C)
Last update 23 Jun 10:50 am CDT
Extended Forecast for

4 Miles N Whitesboro TX

  • Today

    Today: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 10 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms between 10pm and 1am. Increasing clouds, with a low around 75. South wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 91. Heat index values as high as 101. South wind 5 to 10 mph.

    High: 91 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 93. South wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 94. South wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 10 mph.
Tonight
A chance of showers and thunderstorms between 10pm and 1am. Increasing clouds, with a low around 75. South wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 91. Heat index values as high as 101. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 93. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 94. South wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 79.
Monday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Whitesboro TX
 33.71°N 96.9°W (Elev. 735 ft)
Last Update:
6:06 am CDT Jun 23, 2026
Forecast Valid:
11am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation