Lake Poygan Weather Forecast

    • 50
    • 68

    Decreasing Clouds

    • 54
    • 72

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 63
    • 78

    Partly Sunny

    • 62
    • 86

    Mostly Cloudy

Today 30 May Winnebago

Cooler. Partly cloudy in the morning then becoming mostly sunny. Highs in the lower 70s. East wind 10 to 15 Mph.

Tonight 30 May Winnebago

Partly cloudy. Lows in the middle 50s. East wind 5 to 10 Mph.

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Lake Poygan Temperature Statistics

May Temperature

Appleton-Outagamie (14.9 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    55.1 °F

  • Highest 26 May, 2026

    91.4 °F

Climate (2021–Present)

Appleton-Outagamie (14.9 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    56.7 °F
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