Walnut Creek Weather Forecast

    • 65
    • 82

    Mostly Cloudy

    • 66
    • 83

    Chance Thunderstorms

    • 66
    • 84

    Slight Chance Thunderstorms

    • 66
    • 85

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

    • 70
    • 89

    Mostly Sunny

Today 4 Aug Hamilton

Partly cloudy. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 4 Aug Hamilton

Partly cloudy. Near steady temperature in the lower 60s. Northeast Winds around 5 Mph.

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Walnut Creek Temperature Statistics

August Temperature

INDIANAPOLIS (14.3 miles)

  • Lowest 1 August, 2025

    56.3 °F

  • Average August

    65 °F

  • Highest 1 August, 2025

    74.7 °F

Climate (2020–Present)

INDIANAPOLIS (14.3 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    62 °F
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