Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

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 SE 12 mph
Barometer 29.91 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 4 Aug 2:35 am CDT
Extended Forecast for

2 Miles ENE Denison TX

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Tuesday Night

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

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 102. South wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South southeast wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. South southeast wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 98. South southwest wind 5 to 10 mph.

    High: 98 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. Southeast wind around 5 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 76. Southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 78. South southeast wind around 5 mph.
Wednesday
Sunny and hot, with a high near 102. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 79. South southeast wind around 5 mph.
Thursday
Sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 79. South southeast wind around 5 mph.
Friday
Mostly sunny, with a high near 98. South southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 77. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 98.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 78.
Monday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Denison TX
 33.78°N 96.52°W (Elev. 650 ft)
1:26 am CDT Aug 4, 2026
2am CDT Aug 4, 2026-6pm CDT Aug 10, 2026
 
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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