Heavy Rain in the Appalachians and Central Gulf Coast; Heat Continues in the West; Monitoring the Tropics

Heavy to excessive rainfall over the southern Appalachians and portions of the central Gulf Coast may bring areas of flooding today. Hot temperatures are in place through today across much of the western U.S. and New England. Tropical Storm Erin is forecast to become a Major Hurricane this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

79°F

26°C

Humidity 74%
Wind Speed Vrbl 5 mph
Barometer 30.06 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Aug 9:50 am CDT
Extended Forecast for

3 Miles S McBride OK

  • Today

    Today: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 90. Heat index values as high as 98. North northeast wind around 5 mph becoming calm.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms.  Partly cloudy, with a low around 76. Calm wind becoming north northwest around 5 mph.  Chance of precipitation is 20%.

    Low: 76 °F

    Isolated
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 90. Heat index values as high as 99. Northeast wind around 5 mph becoming calm.

    High: 90 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. East northeast wind around 5 mph becoming south southeast after midnight.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. South wind around 5 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 80. South southeast wind 5 to 10 mph.

    Low: 80 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. South wind around 10 mph.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 80. South southeast wind around 10 mph.

    Low: 80 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. South wind around 10 mph.

    High: 93 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 98. North northeast wind around 5 mph becoming calm.
Tonight
Isolated showers and thunderstorms. Partly cloudy, with a low around 76. Calm wind becoming north northwest around 5 mph. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 99. Northeast wind around 5 mph becoming calm.
Wednesday Night
Mostly clear, with a low around 77. East northeast wind around 5 mph becoming south southeast after midnight.
Thursday
Sunny, with a high near 93. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 80. South southeast wind 5 to 10 mph.
Friday
Sunny, with a high near 94. South wind around 10 mph.
Friday Night
Mostly clear, with a low around 80. South southeast wind around 10 mph.
Saturday
Sunny, with a high near 93. South wind around 10 mph.
Saturday Night
Mostly clear, with a low around 80.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 79.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S McBride OK
 33.89°N 96.63°W (Elev. 617 ft)
6:49 am CDT Aug 12, 2025
10am CDT Aug 12, 2025-6pm CDT Aug 18, 2025
 
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Additional Resources

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Hourly Weather Forecast

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