Sy Lake Weather Forecast

    • 53
    • 74

    Decreasing Clouds

    • 54
    • 74

    Partly Sunny

    • 61
    • 78

    Mostly Cloudy

    • 58
    • 80

    Slight Chance Thunderstorms

    • 56
    • 75

    Partly Sunny

    • 57
    • 76

    Partly Sunny

Today 10 Sep Manitowoc

Partly sunny. Highs in the lower 70s. Light and variable wind becoming south around 5 Mph in the afternoon.

Tonight 10 Sep Manitowoc

Mostly clear. Lows in the middle 50s. Light and variable wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sy Lake Temperature Statistics

September Temperature

Sheboygan County Memorial Airport (13 miles)

  • Lowest 4 September, 2025

    41 °F

  • Average September

    56.6 °F

  • Highest 2 September, 2025

    75.9 °F

Climate (2020–Present)

Sheboygan County Memorial Airport (13 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    57.2 °F
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