Guernsey State Park Weather Forecast

    • 48
    • 73

    Mostly Sunny

    • 52
    • 78

    Partly Sunny

    • 53
    • 83

    Partly Sunny

    • 54
    • 83

    Partly Sunny

    • 47
    • 74

    Slight Chance Thunderstorms

    • 47
    • 78

    Mostly Sunny

Today 18 Sep East Platte County

Sunny, warmer with Highs in the lower 70s. Northwest Winds around 5 Mph.

Tonight 18 Sep East Platte County

Mostly clear. Lows in the mid 40s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Guernsey State Park Temperature Statistics

September Temperature

Camp Guernsey (4.3 miles)

  • Lowest 6 September, 2025

    37.2 °F

  • Average September

    66.2 °F

  • Highest 11 September, 2025

    91.8 °F

Climate (2020–Present)

Camp Guernsey (4.3 miles)

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  • Average Low 2020–2025

    35.3 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    62.5 °F
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