Waterloo Weather Forecast

    • 76
    • 99

    Slight Chance Rain Showers

    • 75
    • 98

    Hot

    • 75
    • 98

    Hot

    • 75
    • 96

    Hot

    • 75
    • 96

    Hot

    • 75
    • 96

    Mostly Sunny

Today 4 Aug Williamson

Sunny. Highs in the upper 90s. South Winds 5 to 10 Mph. Highest heat index Readings up to 107.

Tonight 4 Aug Williamson

Mostly clear. Lows in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Waterloo Temperature Statistics

August Temperature

Georgetown, Georgetown Municipal Airport (17.4 miles)

  • Lowest 2 August, 2026

    73 °F

  • Average August

    86.9 °F

  • Highest 2 August, 2026

    100 °F

Climate (2021–2026)

Georgetown, Georgetown Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    59.6 °F

  • Average 2021–2026

    69.9 °F

  • Average High 2021–2026

    80.8 °F
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