Decorah Lake Weather Forecast

    • 20
    • 42

    Increasing Clouds

    • 28
    • 35

    Snow Likely

    • 22
    • 48

    Mostly Cloudy

    • 10
    • 28

    Mostly Cloudy

    • 16
    • 25

    Slight Chance Snow

    • 17
    • 30

    Chance Snow

Today 31 Jan Juneau

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

Tonight 31 Jan Juneau

Partly cloudy. Lows around 19. Northeast Winds around 5 Mph.

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  • Temperature Real-Time

Decorah Lake Temperature Statistics

January Temperature

New Lisbon Mauston Airport (3.1 miles)

  • Lowest 21 January, 2025

    -15.7 °F

  • Average January

    16.5 °F

  • Highest 28 January, 2025

    50.9 °F

Climate (2020–Present)

New Lisbon Mauston Airport (3.1 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    57.4 °F
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