Dorchester Weather Forecast

    • 26
    • 41

    Becoming Sunny

    • 29
    • 54

    Partly Sunny

    • 23
    • 42

    Partly Sunny

    • 31
    • 38

    Slight Chance Snow

    • 18
    • 46

    Mostly Cloudy

    • 11
    • 28

    Mostly Cloudy

Today 29 Jan Allamakee

Mostly sunny. Colder with Highs in the lower 40s. West Winds 5 to 10 Mph.

Tonight 29 Jan Allamakee

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 20s. Southwest Winds 5 to 10 Mph.

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Dorchester Temperature Statistics

January Temperature

Decorah (16.8 miles)

  • Lowest 21 January, 2025

    -16.6 °F

  • Average January

    14.9 °F

  • Highest 17 January, 2025

    46.4 °F

Climate (2020–Present)

Decorah (16.8 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    47.8 °F

  • Average High 2020–2025

    56.2 °F
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