Georgetown Municipal Airport Weather Forecast

    • 75
    • 97

    Hot

    • 73
    • 97

    Hot

    • 73
    • 96

    Partly Sunny

    • 75
    • 96

    Partly Sunny

    • 75
    • 96

    Mostly Sunny

Today 23 Sep Williamson

Partly cloudy. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the upper 90s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent. Highest heat index Readings up to 105.

Tonight 23 Sep Williamson

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the mid 70s. East Winds around 5 Mph, becoming south after midnight.

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Georgetown Municipal Airport Temperature Statistics

September Temperature

Georgetown, Georgetown Municipal Airport (0 miles)

  • Lowest 18 September, 2026

    75 °F

  • Average September

    87.1 °F

  • Highest 2 September, 2026

    102 °F

Climate (2021–2026)

Georgetown, Georgetown Municipal Airport (0 miles)

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  • Average Low 2021–2026

    59.7 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    81 °F
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