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Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

86°F

30°C

Humidity 75%
Wind Speed S 9 mph
Barometer 29.73 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 18 Jun 10:50 am CDT
Extended Forecast for

2 Miles N Sherman TX

Heat Advisory June 18, 12:00pm until June 18, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 93. Heat index values as high as 106. East southeast wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms, mainly after 1am. Low around 75. East northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 75 °F

    Slight Chance
    T-storms then
    T-storms

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 86. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 73 °F

    T-storms
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 5 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 10 mph.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 106. East southeast wind 5 to 10 mph.
Tonight
Showers and thunderstorms, mainly after 1am. Low around 75. East northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Juneteenth
Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 86. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 94. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 10 mph.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 72. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Sherman TX
 33.64°N 96.6°W (Elev. 732 ft)
Last Update:
6:06 am CDT Jun 18, 2026
Forecast Valid:
11am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
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