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.

Overcast

79°F

26°C

Humidity 65%
Wind Speed S 16 mph
Barometer 29.90 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 3 Apr 5:50 pm CDT
Extended Forecast for

Sherman TX

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 54. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 54 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. High near 65. North wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 65 °F

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46. North wind 5 to 10 mph.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68. North northeast wind 5 to 10 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48. Northeast wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. East wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. Southeast wind 5 to 10 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. South southeast wind around 5 mph.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 54. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. High near 65. North wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Partly cloudy, with a low around 46. North wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 68. North northeast wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 48. Northeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 70. Calm wind becoming east southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 47. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 71. Southeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 50. South southeast wind around 5 mph.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Partly sunny, with a high near 77.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sherman TX
 33.64°N 96.63°W (Elev. 705 ft)
Last Update:
6:07 pm CDT Apr 3, 2026
Forecast Valid:
6pm CDT Apr 3, 2026-6pm CDT Apr 10, 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