St Lucas Weather Forecast

    • 62
    • 84

    Slight Chance Thunderstorms

    • 61
    • 82

    Chance Thunderstorms

    • 61
    • 80

    Chance Rain Showers

    • 59
    • 75

    Chance Thunderstorms

    • 59
    • 74

    Chance Rain Showers

    • 60
    • 76

    Chance Rain Showers

Today 16 Sep Fayette

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 80s. Light Winds. Chance of rain 20 percent.

Tonight 16 Sep Fayette

Mostly cloudy. Humid with Lows in the lower 60s. Light Winds.

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St Lucas Temperature Statistics

September Temperature

Decorah (18 miles)

  • Lowest 4 September, 2025

    41 °F

  • Average September

    61.8 °F

  • Highest 14 September, 2025

    86 °F

Climate (2020–Present)

Decorah (18 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    47.9 °F

  • Average High 2020–2025

    56.4 °F
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