National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

91°F

33°C

Humidity 52%
Wind Speed S 16 mph
Barometer 29.93 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 15 Jul 6:50 pm CDT
Extended Forecast for

Sherman TX

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Heat index values as high as 101. South wind around 5 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. South southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75. Southeast wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 96. South southwest wind 5 to 10 mph.

    High: 96 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. South southeast wind around 5 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 94. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 96. Heat index values as high as 101. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 74. South southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 96. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 75. Southeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 96. South southwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 78. South southeast wind around 5 mph.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Mostly clear, with a low around 78.
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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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sherman TX
 33.64°N 96.6°W (Elev. 732 ft)
Last Update:
5:24 pm CDT Jul 15, 2025
Forecast Valid:
6pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation