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 with Haze

56°F

13°C

Humidity 81%
Wind Speed S 5 mph
Barometer 30.20 in
Dewpoint 50°F (10°C)
Visibility 6.00 mi
Last update 21 Apr 4:15 am CDT
Extended Forecast for

Pottsboro TX

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 56. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms before 1pm, then a chance of showers. High near 62. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. South southeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 74. South wind 10 to 15 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 78 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. West northwest wind around 10 mph becoming east southeast after midnight.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 56. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms before 1pm, then a chance of showers. High near 62. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. South southeast wind around 10 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 74. South wind 10 to 15 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 25 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 61. West northwest wind around 10 mph becoming east southeast after midnight.
Saturday
Partly sunny, with a high near 84.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pottsboro TX
 33.75°N 96.66°W (Elev. 797 ft)
Last Update:
1:26 am CDT Apr 21, 2026
Forecast Valid:
4am CDT Apr 21, 2026-6pm CDT Apr 27, 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