Casco Weather Forecast

    • 55
    • 70

    Chance Rain Showers

    • 53
    • 72

    Decreasing Clouds

    • 56
    • 67

    Rain Showers

    • 54
    • 66

    Rain Showers

    • 51
    • 65

    Mostly Cloudy

    • 51
    • 64

    Slight Chance Rain Showers

    • 52
    • 66

    Slight Chance Rain Showers

Today 16 Sep Kewaunee

Partly cloudy. Highs in the upper 60s.

Tonight 16 Sep Kewaunee

Mostly cloudy. A chance of Showers after midnight. Lows in the middle 50s. Light and variable wind. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Casco Temperature Statistics

September Temperature

Door County Cherryland Airport (21.1 miles)

  • Lowest 14 September, 2026

    45 °F

  • Average September

    68.5 °F

  • Highest 1 September, 2026

    86 °F

Climate (2021–2026)

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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