Walnut Weather Forecast

    • 64
    • 89

    Mostly Sunny

    • 60
    • 82

    Partly Sunny

    • 63
    • 81

    Partly Sunny

    • 74
    • 89

    Partly Sunny

    • 62
    • 89

    Chance Rain Showers

    • 61
    • 82

    Slight Chance Rain Showers

Today 5 Sep Bureau

Sunny, hot with Highs around 90. Northeast Winds 5 to 10 Mph.

Tonight 5 Sep Bureau

Mostly clear. Patchy fog after midnight. Humid with Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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Walnut Temperature Statistics

September Temperature

Sterling Rockfalls (13 miles)

  • Lowest 1 September, 2026

    72 °F

  • Average September

    83.2 °F

  • Highest 2 September, 2026

    96.1 °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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