Postville Weather Forecast

    • 31
    • 38

    Mostly Cloudy

    • 26
    • 38

    Mostly Cloudy

    • 32
    • 43

    Mostly Sunny

    • 30
    • 43

    Chance Rain

    • 24
    • 35

    Chance Rain/Snow

    • 13
    • 27

    Chance Snow

Today 5 Jan Allamakee

Patchy fog this morning. Mostly cloudy. Highs in the upper 30s. Northwest Winds around 5 Mph, becoming southeast this afternoon.

Tonight 5 Jan Allamakee

Cloudy. A chance of rain and freezing rain after midnight. Areas of freezing fog with patchy fog after midnight. Ice accumulation of less than one tenth of an inch. Lows in the lower 30s. East Winds around 5 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Postville Temperature Statistics

January Temperature

Decorah (15.5 miles)

  • Lowest 1 January, 2026

    6.8 °F

  • Average January

    15.9 °F

  • Highest 3 January, 2026

    23 °F

Climate (2021–Present)

Decorah (15.5 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    56.6 °F
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