National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Snow in the Rockies; Showers and Thunderstorms Along the Gulf Coast; Potential Winter Storm for Northern Mid-Atlantic and Interior New England

A winter-like pattern will continue over much of the Lower 48 over the next few days, with snow stretching from the Rockies today into the Middle Mississippi Valley on Monday. Showers and thunderstorms will develop along the Gulf Coast and Southeast on Monday. As the storm moves northward late Monday into Tuesday, winter weather is possible from the Central Appalachians to Interior New England. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Overcast

36°F

2°C

Humidity 76%
Wind Speed E 7 mph
Barometer 30.24 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 1 Dec 4:35 am CST
Extended Forecast for

Grayson County Airport TX

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a steady temperature around 36. East wind around 10 mph.

    Low: 36 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers between noon and 3pm. Cloudy, with a high near 40. East wind 5 to 10 mph becoming north in the afternoon.

    High: 40 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Cloudy during the early evening, then gradual clearing, with a low around 26. North northwest wind around 5 mph.

    Low: 26 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Sunny, with a high near 50. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36. South southeast wind 5 to 15 mph.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60. South wind 5 to 15 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers after noon. Cloudy, with a high near 42. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 42 °F

    Cloudy then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers, mainly before midnight. Cloudy, with a low around 33. North wind 5 to 10 mph.

    Low: 33 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a steady temperature around 36. East wind around 10 mph.
Monday
A 20 percent chance of showers between noon and 3pm. Cloudy, with a high near 40. East wind 5 to 10 mph becoming north in the afternoon.
Monday Night
Cloudy during the early evening, then gradual clearing, with a low around 26. North northwest wind around 5 mph.
Tuesday
Sunny, with a high near 50. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 36. South southeast wind 5 to 15 mph.
Wednesday
Sunny, with a high near 60. South wind 5 to 15 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 34. North wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
A 40 percent chance of showers after noon. Cloudy, with a high near 42. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A 40 percent chance of showers, mainly before midnight. Cloudy, with a low around 33. North wind 5 to 10 mph.
Friday
Partly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
11:21 pm CST Nov 30, 2025
Forecast Valid:
4am CST Dec 1, 2025-6pm CST Dec 7, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation