Round Rock Weather Forecast

    • 41
    • 61

    Mostly Sunny

    • 56
    • 65

    Increasing Clouds

    • 63
    • 75

    Mostly Cloudy

    • 52
    • 74

    Chance Rain Showers

    • 56
    • 69

    Partly Sunny

    • 50
    • 72

    Chance Rain Showers

    • 51
    • 71

    Partly Sunny

Today 21 Dec Williamson

Sunny. Highs around 60. East Winds around 5 Mph.

Tonight 21 Dec Williamson

Mostly clear. Lows in the upper 30s. Southeast Winds around 5 Mph.

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Round Rock Temperature Statistics

December Temperature

Austin Executive Airport (10.6 miles)

  • Lowest 12 December, 2024

    32 °F

  • Average December

    57.6 °F

  • Highest 9 December, 2024

    84.2 °F

Climate (2019–Present)

Austin Executive Airport (10.6 miles)

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  • Average Low 2019–2024

    59 °F

  • Average 2019–2024

    68.8 °F

  • Average High 2019–2024

    79.6 °F
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