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

Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

50°F

10°C

Humidity 43%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 31 Dec 10:50 am CST
Extended Forecast for

Grayson County Airport TX

  • Today

    Today: Sunny, with a high near 63. West northwest wind around 5 mph becoming south southwest in the afternoon.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. South southwest wind around 5 mph.

    Low: 39 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Increasing clouds, with a high near 66. Southwest wind 5 to 10 mph.

    High: 66 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A slight chance of sprinkles after 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 49. South wind around 10 mph.

    Low: 49 °F

    Slight Chance
    Sprinkles

  • Friday

    Friday: Sunny, with a high near 68. South southwest wind 5 to 10 mph becoming north northwest in the afternoon.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. North wind 5 to 10 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63. North wind 5 to 10 mph.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. North wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 63. West northwest wind around 5 mph becoming south southwest in the afternoon.
Tonight
Mostly clear, with a low around 39. South southwest wind around 5 mph.
New Year's Day
Increasing clouds, with a high near 66. Southwest wind 5 to 10 mph.
Thursday Night
A slight chance of sprinkles after 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 49. South wind around 10 mph.
Friday
Sunny, with a high near 68. South southwest wind 5 to 10 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 43. North wind 5 to 10 mph.
Saturday
Sunny, with a high near 63. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 39. North wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 64. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
Sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
11:21 am CST Dec 31, 2025
Forecast Valid:
11am CST Dec 31, 2025-6pm CST Jan 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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