Bonny Lake State Park Weather Forecast

    • 51
    • 73

    Becoming Sunny

    • 55
    • 87

    Mostly Sunny

    • 51
    • 81

    Chance Thunderstorms

    • 51
    • 78

    Slight Chance Thunderstorms

    • 52
    • 83

    Mostly Sunny

    • 56
    • 84

    Partly Sunny

Today 14 Sep Yuma County

Chance of Showers in the morning. Partly cloudy with slight chance of Thunderstorms. Highs in the lower 70s. Northwest Winds 10 to 20 Mph. Chance of rain 50 percent.

Tonight 14 Sep Yuma County

Mostly cloudy with a 50 percent chance of Thunderstorms. Near steady temperature in the upper 50s. Northwest Winds 5 to 10 Mph.

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Bonny Lake State Park Temperature Statistics

September Temperature

ST FRANCIS (23.6 miles)

  • Lowest 6 September, 2025

    41 °F

  • Average September

    67.8 °F

  • Highest 11 September, 2025

    96.8 °F

Climate (2020–Present)

ST FRANCIS (23.6 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    67.2 °F
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