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

81°F

27°C

Humidity 62%
Wind Speed S 20 G 26 mph
Barometer 29.90 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 May 11:50 am CDT
Extended Forecast for

3 Miles NNE Tom Bean TX

  • This Afternoon

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

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 72. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 88. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 88 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 74. South wind around 20 mph, with gusts as high as 30 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 88 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. South southeast wind around 10 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. East wind around 10 mph. Chance of precipitation is 60%.

    High: 78 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 88. South wind around 20 mph, with gusts as high as 30 mph.
Tonight
Increasing clouds, with a low around 72. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 88. 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 74. South wind around 20 mph, with gusts as high as 30 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southeast wind around 20 mph, with gusts as high as 30 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. South southeast wind around 10 mph becoming northeast after midnight. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. East wind around 10 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Cloudy, with a low around 64. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Cloudy, with a high near 76. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Tom Bean TX
 33.55°N 96.46°W (Elev. 699 ft)
Last Update:
6:21 am CDT May 16, 2026
Forecast Valid:
12pm CDT May 16, 2026-6pm CDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation