Swanson Reservoir State Recreation Area Weather Forecast

    • 66
    • 96

    Slight Chance Thunderstorms

    • 65
    • 97

    Slight Chance Thunderstorms

    • 66
    • 93

    Mostly Sunny

    • 64
    • 92

    Sunny

    • 64
    • 95

    Mostly Sunny

    • 61
    • 91

    Chance Thunderstorms

Today 17 Aug Hitchcock

Sunny. Highs in the mid 90s. South Winds up to 10 Mph.

Tonight 17 Aug Hitchcock

Clear. Slight chance of Thunderstorms in the evening. Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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Swanson Reservoir State Recreation Area Temperature Statistics

August Temperature

McCook, McCook Municipal Airport (24.9 miles)

  • Lowest 4 August, 2025

    56.6 °F

  • Average August

    77.7 °F

  • Highest 8 August, 2025

    102.7 °F

Climate (2020–Present)

McCook, McCook Municipal Airport (24.9 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    67.7 °F
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