Siena Weather Forecast

    • 61
    • 86

    Increasing Clouds

    • 55
    • 82

    Mostly Cloudy

    • 62
    • 81

    Mostly Cloudy

    • 61
    • 80

    Partly Sunny

    • 63
    • 83

    Partly Sunny

    • 62
    • 81

    Chance Rain Showers

    • 63
    • 79

    Chance Rain Showers

Today 24 Oct Williamson

Mostly cloudy with a slight chance of Showers. Highs in the lower 80s.

Tonight 24 Oct Williamson

Partly cloudy. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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Siena Temperature Statistics

October Temperature

Georgetown, Georgetown Municipal Airport (10.6 miles)

  • Lowest 18 October, 2026

    46 °F

  • Average October

    73 °F

  • Highest 13 October, 2026

    93.9 °F

Climate (2021–2026)

Georgetown, Georgetown Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    59.8 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    81 °F
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