Postville Weather Forecast

    • 59
    • 80

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 62
    • 81

    Partly Sunny

    • 67
    • 80

    Chance Thunderstorms

    • 69
    • 86

    Chance Rain Showers

    • 66
    • 87

    Chance Rain Showers

    • 64
    • 85

    Chance Rain Showers

Today 26 Aug Allamakee

Mostly sunny. Near steady temperature around 80. Northwest Winds 5 to 10 Mph.

Tonight 26 Aug Allamakee

Partly cloudy. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.

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Postville Temperature Statistics

August Temperature

Decorah (15.5 miles)

  • Lowest 23 August, 2026

    50 °F

  • Average August

    70.5 °F

  • Highest 12 August, 2026

    84.2 °F

Climate (2021–2026)

Decorah (15.5 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    56.3 °F
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