Walnut Weather Forecast

    • 69
    • 82

    Decreasing Clouds

    • 72
    • 88

    Chance Rain Showers

    • 75
    • 91

    Partly Sunny

    • 74
    • 92

    Partly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 71
    • 90

    Slight Chance Thunderstorms

Today 29 Aug Bureau

Partly cloudy Early, then becoming mostly cloudy. Highs in the lower 80s. South Winds 10 to 15 Mph.

Tonight 29 Aug Bureau

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Walnut Temperature Statistics

August Temperature

Sterling Rockfalls (13 miles)

  • Lowest 24 August, 2026

    51.1 °F

  • Average August

    72.6 °F

  • Highest 4 August, 2026

    84.9 °F

Climate (2021–2026)

Sterling Rockfalls (13 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.1 °F
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