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.

A Few Clouds

70°F

21°C

Humidity 95%
Wind Speed E 13 G 18 mph
Barometer 30.08 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 24 Jun 12:35 am CDT
Extended Forecast for

3 Miles NNE Dorchester TX

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 78. South wind around 10 mph.

    Low: 78 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Heat index values as high as 100. South wind 5 to 10 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 93. South wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 94. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 94 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 78. South wind around 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Heat index values as high as 100. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 93. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 75. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 94. South wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 75. South wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 77.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Dorchester TX
 33.57°N 96.68°W (Elev. 797 ft)
Last Update:
9:46 pm CDT Jun 23, 2026
Forecast Valid:
12am CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

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