Casco Weather Forecast

    • 42
    • 69

    Becoming Sunny

    • 60
    • 69

    Rain Showers

    • 51
    • 75

    Mostly Cloudy

    • 57
    • 69

    Chance Rain Showers

    • 55
    • 72

    Partly Sunny

    • 56
    • 70

    Chance Rain Showers

    • 54
    • 70

    Chance Rain Showers

Today 13 Sep Kewaunee

Mostly sunny. Temperatures in the mid to upper 60s. Northwest wind 10 to 15 Mph.

Tonight 13 Sep Kewaunee

Clear. Lows in the middle 40s. Northwest wind 5 to 10 Mph in the evening becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Casco Temperature Statistics

September Temperature

Door County Cherryland Airport (21.1 miles)

  • Lowest 7 September, 2026

    57 °F

  • Average September

    70 °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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