Grayson County Airport Weather Forecast

    • 24
    • 50

    Decreasing Clouds

    • 13
    • 43

    Mostly Sunny

    • 17
    • 30

    Mostly Sunny

    • 28
    • 45

    Mostly Sunny

    • 41
    • 55

    Partly Sunny

    • 35
    • 58

    Chance Rain Showers

    • 30
    • 53

    Partly Sunny

Today 29 Jan Grayson

Mostly sunny. Highs in the lower 50s. Northwest Winds 5 to 10 Mph.

Tonight 29 Jan Grayson

Mostly cloudy this Evening, then clearing. Cold with Lows in the mid 20s. North Winds 10 to 15 Mph. Wind chill Values as low as 13.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grayson County Airport Temperature Statistics

January Temperature

Sherman/Denison, Grayson County Airport (0 miles)

  • Lowest 25 January, 2026

    11.8 °F

  • Average January

    42.6 °F

  • Highest 7 January, 2026

    77 °F

Climate (2021–Present)

Sherman/Denison, Grayson County Airport (0 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    55.4 °F

  • Average 2021–2026

    64.1 °F

  • Average High 2021–2026

    76.4 °F
Get WillyWeather+ to remove ads