Lake Onalaska Weather Forecast

    • 27
    • 56

    Mostly Sunny

    • 23
    • 41

    Partly Sunny

    • 29
    • 36

    Mostly Cloudy

    • 19
    • 46

    Mostly Cloudy

    • 11
    • 26

    Mostly Cloudy

    • 12
    • 24

    Mostly Cloudy

Today 30 Jan La Crosse

Sunny. Not as cool with Highs in the mid 50s. Southwest Winds 5 to 10 Mph.

Tonight 30 Jan La Crosse

Partly cloudy in the Evening, then becoming mostly clear. Lows in the upper 20s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Onalaska Temperature Statistics

January Temperature

La Crosse - La Crosse Regional Airport (2.5 miles)

  • Lowest 21 January, 2025

    -16.2 °F

  • Average January

    17.3 °F

  • Highest 28 January, 2025

    54 °F

Climate (2020–Present)

La Crosse - La Crosse Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    59.7 °F
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