Casco Weather Forecast

    • 41
    • 54

    Mostly Cloudy

    • 45
    • 60

    Mostly Cloudy

    • 47
    • 61

    Mostly Cloudy

    • 49
    • 70

    Partly Sunny

    • 52
    • 73

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 21 May Kewaunee

Partly cloudy in the morning then becoming mostly cloudy. Highs in the lower 50s. Northeast wind 10 to 15 Mph.

Tonight 21 May Kewaunee

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s. East wind 5 to 10 Mph.

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Casco Temperature Statistics

May Temperature

Door County Cherryland Airport (21.1 miles)

  • Lowest 2 May, 2026

    27 °F

  • Average May

    48.9 °F

  • Highest 16 May, 2026

    84 °F

Climate (2021–Present)

Door County Cherryland Airport (21.1 miles)

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  • Average Low 2021–2026

    39.8 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    53.9 °F
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