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

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

100°F

38°C

Humidity 45%
Wind Speed S 13 mph
Barometer 29.88 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index114°F (46°C)
Last update 26 Jun 1:50 pm CDT
Extended Forecast for

4 Miles SE Lebanon OK

Heat Advisory June 27, 11:00am until June 27, 09:00pm
Excessive Heat Warning June 26, 02:09pm until June 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
Excessive Heat Warning
  •  
    Excessive Heat Warning June 26, 02:09pm until June 26, 09:00pm

    NOW until 9:00pm Wed

    Excessive Heat Warning

  • This Afternoon

    High: 101 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 76. Southwest wind around 6 mph becoming northeast after midnight.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 109. East wind 3 to 8 mph.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. Southeast wind around 9 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. South wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79.

    Low: 79 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 4pm. Sunny and hot, with a high near 101. Heat index values as high as 111. West southwest wind around 9 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 76. Southwest wind around 6 mph becoming northeast after midnight.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 109. East wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 79. Southeast wind around 9 mph.
Friday
Sunny and hot, with a high near 100. South wind 8 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 80.
Saturday
Sunny and hot, with a high near 100.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 99.
Sunday Night
Mostly clear, with a low around 78.
Monday
Sunny and hot, with a high near 101.
Monday Night
Mostly clear, with a low around 81.
Tuesday
Sunny and hot, with a high near 103.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Lebanon OK
 33.95°N 96.85°W
Last Update:
2:05 pm CDT Jun 26, 2024
Forecast Valid:
2pm CDT Jun 26, 2024-6pm CDT Jul 2, 2024
 
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