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.

Mostly Cloudy

86°F

30°C

Humidity 59%
Wind Speed SW 6 mph
Barometer 30.00 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 13 Jul 3:50 pm CDT
Extended Forecast for

Gainesville TX

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 87. Calm wind becoming south southwest around 5 mph.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 100. South wind 5 to 10 mph.

    High: 91 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. South wind 5 to 10 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 87. Calm wind becoming south southwest around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 100. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 73. South wind around 5 mph.
Wednesday
Sunny, with a high near 93. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 74. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 94. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 73. South wind around 5 mph.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gainesville TX
 33.63°N 97.14°W (Elev. 764 ft)
Last Update:
3:42 pm CDT Jul 13, 2025
Forecast Valid:
4pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation