Onalaska Weather Forecast

    • 22
    • 38

    Mostly Cloudy

    • 32
    • 37

    Rain/Snow Likely

    • 2
    • 38

    Rain/Snow Likely

    • 17
    • 25

    Mostly Cloudy

    • 9
    • 33

    Partly Sunny

    • 16
    • 24

    Mostly Cloudy

Today 16 Dec La Crosse

Partly sunny. Not as cold with Highs in the upper 30s. South Winds 10 to 15 Mph.

Tonight 16 Dec La Crosse

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 20. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onalaska Temperature Statistics

December Temperature

La Crosse - La Crosse Regional Airport (0.6 miles)

  • Lowest 13 December, 2025

    -2.9 °F

  • Average December

    16.8 °F

  • Highest 9 December, 2025

    30.9 °F

Climate (2020–Present)

La Crosse - La Crosse Regional Airport (0.6 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    59.8 °F
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