Swanson Lake Weather Forecast

    • 61
    • 87

    Rain Showers Likely

    • 55
    • 76

    Chance Rain Showers

    • 61
    • 88

    Mostly Sunny

    • 56
    • 82

    Chance Thunderstorms

    • 55
    • 78

    Slight Chance Thunderstorms

    • 56
    • 82

    Mostly Sunny

    • 59
    • 81

    Partly Sunny

Today 13 Sep Hitchcock

Mostly cloudy. Near steady temperature in the lower 80s. South Winds 10 to 15 Mph.

Tonight 13 Sep Hitchcock

Mostly cloudy. Slight chance of Thunderstorms this Evening, then chance of Thunderstorms after midnight. Lows in the lower 60s. South Winds 10 to 20 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swanson Lake Temperature Statistics

September Temperature

McCook, McCook Municipal Airport (27.3 miles)

  • Lowest 6 September, 2025

    45 °F

  • Average September

    66.9 °F

  • Highest 11 September, 2025

    93 °F

Climate (2020–Present)

McCook, McCook Municipal Airport (27.3 miles)

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  • Average Low 2020–2025

    39.7 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    67.7 °F
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