Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

77°F

25°C

Humidity 90%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 74°F (23°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 16 Jul 1:55 am CDT
Extended Forecast for

Gainesville TX

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 77. South wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 94. Heat index values as high as 105. South wind 5 to 10 mph.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. Heat index values as high as 103. South wind around 5 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South southeast wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97. South southwest wind around 5 mph.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. South wind around 5 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 77. South wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 105. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind around 5 mph.
Thursday
Sunny, with a high near 98. Heat index values as high as 103. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 74. South southeast wind around 5 mph.
Saturday
Sunny, with a high near 97. South southwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 77. South wind around 5 mph.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
Gainesville TX
 33.63°N 97.17°W (Elev. 748 ft)
12:24 am CDT Jul 16, 2025
2am CDT Jul 16, 2025-6pm CDT Jul 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database