Grayson Weather Forecast

    • 39
    • 50

    Rain Showers Likely

    • 29
    • 52

    Slight Chance Rain/Snow

    • 23
    • 37

    Mostly Sunny

    • 21
    • 44

    Mostly Sunny

    • 21
    • 39

    Mostly Sunny

    • 31
    • 49

    Partly Sunny

Today 16 Jan Gwinnett

Sunny. Highs in the lower 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 16 Jan Gwinnett

Partly cloudy with a slight chance of Showers in the Evening, then mostly cloudy with Showers likely after midnight. Not as cold with Lows in the upper 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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Grayson Temperature Statistics

January Temperature

Gwinnett County Airport-Briscoe Field (5.6 miles)

  • Lowest 1 January, 2026

    32 °F

  • Average January

    50.3 °F

  • Highest 7 January, 2026

    69.1 °F

Climate (2021–Present)

Gwinnett County Airport-Briscoe Field (5.6 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    62.1 °F

  • Average High 2021–2026

    72.1 °F
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