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

74°F

23°C

Humidity 64%
Wind Speed SE 8 mph
Barometer 30.00 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 May 1:15 am CDT
Extended Forecast for

Dorchester TX

  • Overnight

    Overnight: Mostly clear, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 87 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 86. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 86. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 74. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 65. Southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 88. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 70. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Increasing clouds, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 86. South wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 71. South wind around 15 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 86. 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 74. South wind 15 to 20 mph, with gusts as high as 25 mph.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 84.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dorchester TX
 33.53°N 96.71°W (Elev. 823 ft)
Last Update:
1:26 am CDT May 14, 2026
Forecast Valid:
1am CDT May 14, 2026-6pm CDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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