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

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

88°F

31°C

Humidity 40%
Wind Speed S 20 G 28 mph
Barometer 29.82 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 15 May 2:50 pm CDT
Extended Forecast for

3 Miles WNW Sherman TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. South wind around 20 mph, with gusts as high as 30 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 70. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 87. South wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 87 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 71. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 87 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 73. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 73 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 87 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 81 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. South wind around 20 mph, with gusts as high as 30 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 70. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 87. South wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday Night
Increasing clouds, with a low around 71. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 73. South wind 15 to 20 mph, with gusts as high as 25 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 15 to 20 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Sherman TX
 33.64°N 96.65°W (Elev. 771 ft)
Last Update:
1:26 pm CDT May 15, 2026
Forecast Valid:
3pm CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation