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.

Mostly Cloudy and Breezy

73°F

23°C

Humidity 81%
Wind Speed S 21 G 30 mph
Barometer 29.85 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 16 May 5:55 am CDT
Extended Forecast for

4 Miles NNE Denison TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 89. South wind around 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Slight Chance
    T-storms then
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 73. South southeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 89 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 75. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 89 °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 73. South southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 73 °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 85. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 10 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Northeast wind around 10 mph. Chance of precipitation is 60%.

    High: 77 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 89. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 73. South southeast wind around 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 75. South wind around 15 mph, with gusts as high as 25 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. 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 73. South southeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 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 77. Northeast wind around 10 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Cloudy, with a high near 77. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Denison TX
 33.8°N 96.55°W (Elev. 640 ft)
Last Update:
1:26 am CDT May 16, 2026
Forecast Valid:
6am CDT May 16, 2026-6pm CDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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