Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

93°F

34°C

Humidity 36%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 22 Aug 4:50 pm CDT
Extended Forecast for

2 Miles W Knollwood TX

  • Tonight

    Tonight: Mostly clear, with a low around 71. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. North northeast wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Heat index values as high as 98. North northeast wind around 5 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73. East northeast wind around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 68. East wind 5 to 10 mph.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 80. East wind around 10 mph.  Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 1am.  Mostly cloudy, with a low around 65. East northeast wind 5 to 10 mph.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 71. East northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 94. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 72. North northeast wind around 5 mph.
Sunday
Sunny, with a high near 94. Heat index values as high as 98. North northeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 73. East northeast wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. East wind 5 to 10 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. East wind around 10 mph. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 65. East northeast wind 5 to 10 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Knollwood TX
 33.69°N 96.65°W (Elev. 797 ft)
5:24 pm CDT Aug 22, 2025
6pm CDT Aug 22, 2025-6pm CDT Aug 29, 2025
 
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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