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.

Fair

81°F

27°C

Humidity 55%
Wind Speed S 12 mph
Barometer 29.85 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 14 May 8:55 pm CDT
Extended Forecast for

Whitesboro TX

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind around 10 mph.

    Low: 69 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 86. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms between 10pm and 1am. Mostly cloudy, with a low around 69. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 85. South wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 85 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 84. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 84 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 84. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 84 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind around 10 mph.
Friday
Partly sunny, with a high near 86. South wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A slight chance of showers and thunderstorms between 10pm and 1am. Mostly cloudy, with a low around 69. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 85. South wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 71. South wind around 15 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 84. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74. South wind around 15 mph, with gusts as high as 25 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 84. South wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whitesboro TX
 33.66°N 96.9°W (Elev. 801 ft)
Last Update:
6:12 pm CDT May 14, 2026
Forecast Valid:
9pm CDT May 14, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation