Walnut Weather Forecast

    • 58
    • 84

    Partly Sunny

    • 52
    • 74

    Chance Thunderstorms

    • 66
    • 75

    Chance Thunderstorms

    • 62
    • 84

    Rain Showers

    • 63
    • 78

    Rain Showers Likely

    • 58
    • 78

    Chance Rain Showers

Today 12 Sep Bureau

Mostly sunny. Highs in the mid 80s. Southwest Winds 5 to 10 Mph, becoming west this afternoon.

Tonight 12 Sep Bureau

Partly cloudy in the Evening, then becoming mostly clear. Lows in the upper 50s. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Walnut Temperature Statistics

September Temperature

Sterling Rockfalls (13 miles)

  • Lowest 7 September, 2026

    57.9 °F

  • Average September

    77 °F

  • Highest 2 September, 2026

    96.1 °F

Climate (2021–2026)

Sterling Rockfalls (13 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.1 °F
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