Walnut Creek Nature Preserve Weather Forecast

    • 76
    • 99

    Hot

    • 75
    • 98

    Hot

    • 74
    • 98

    Hot

    • 75
    • 97

    Hot

    • 75
    • 97

    Hot

    • 75
    • 96

    Slight Chance Thunderstorms

Today 23 Sep Travis

Partly cloudy. Highs in the upper 90s. Northeast Winds around 5 Mph, becoming east around 5 Mph in the afternoon. Highest heat index Readings up to 105.

Tonight 23 Sep Travis

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 70s. Southeast Winds around 5 Mph.

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Walnut Creek Nature Preserve Temperature Statistics

September Temperature

Austin Executive Airport (6.8 miles)

  • Lowest 20 September, 2026

    72 °F

  • Average September

    85.9 °F

  • Highest 2 September, 2026

    102.6 °F

Climate (2021–2026)

Austin Executive Airport (6.8 miles)

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  • Average Low 2021–2026

    59.9 °F

  • Average 2021–2026

    69.8 °F

  • Average High 2021–2026

    81 °F
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