Walnut Weather Forecast

    • 53
    • 73

    Mostly Cloudy

    • 52
    • 72

    Partly Sunny

    • 55
    • 73

    Mostly Sunny

    • 62
    • 75

    Rain Showers Likely

    • 63
    • 72

    Rain Showers Likely

    • 57
    • 72

    Rain Showers Likely

    • 54
    • 68

    Chance Rain Showers

Today 26 Sep Bureau

Partly cloudy. Lows in the mid 50s. Highs in the upper 60s.

Tonight 26 Sep Bureau

Mostly cloudy. Lows in the lower 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Temperature Statistics

September Temperature

Sterling Rockfalls (13 miles)

  • Lowest 14 September, 2026

    48.9 °F

  • Average September

    70.4 °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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