Merrick State Park Weather Forecast

    • 57
    • 65

    Chance Rain Showers

    • 56
    • 65

    Chance Rain Showers

    • 56
    • 71

    Partly Sunny

    • 58
    • 68

    Rain Showers Likely

    • 57
    • 69

    Chance Rain Showers

    • 51
    • 68

    Chance Rain Showers

    • 49
    • 64

    Partly Sunny

Today 26 Sep Buffalo

Mostly cloudy. Near steady temperature in the mid 60s. Southeast Winds 5 to 10 Mph.

Tonight 26 Sep Buffalo

Mostly cloudy with a 40 percent chance of Showers. Lows in the upper 50s. Southeast Winds around 5 Mph.

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Merrick State Park Temperature Statistics

September Temperature

Winona, Winona Municipal Airport-Max Conrad Field (5.6 miles)

  • Lowest 23 September, 2026

    44.6 °F

  • Average September

    65.4 °F

  • Highest 4 September, 2026

    91.4 °F

Climate (2021–2026)

Winona, Winona Municipal Airport-Max Conrad Field (5.6 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    57.7 °F
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