Casco Weather Forecast

    • 46
    • 66

    Partly Sunny

    • 48
    • 68

    Partly Sunny

    • 49
    • 70

    Mostly Sunny

    • 55
    • 70

    Chance Rain Showers

    • 55
    • 67

    Chance Rain Showers

    • 50
    • 67

    Chance Rain Showers

Today 26 Sep Kewaunee

Mostly sunny. Patchy fog in the morning. Highs in the middle 60s. Light and variable wind becoming southeast 5 to 10 Mph in the afternoon.

Tonight 26 Sep Kewaunee

Mostly clear in the evening then becoming mostly cloudy. Lows in the middle 40s. Light and variable wind.

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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

    64.9 °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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