Lake Onalaska Weather Forecast

    • 57
    • 69

    Breezy

    • 57
    • 76

    Chance Thunderstorms

    • 53
    • 76

    Chance Rain Showers

    • 51
    • 71

    Chance Thunderstorms

    • 55
    • 73

    Slight Chance Rain Showers

    • 40
    • 75

    Rain Showers Likely

Today 12 Apr La Crosse

Cloudy with a slight chance of Showers and Thunderstorms. Breezy and much warmer. Near steady temperature in the lower 70s. Southwest Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 20 percent.

Tonight 12 Apr La Crosse

Mostly cloudy this Evening, then becoming partly cloudy. Breezy with Lows in the upper 50s. Southwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Onalaska Temperature Statistics

April Temperature

La Crosse - La Crosse Regional Airport (2.5 miles)

  • Lowest 7 April, 2026

    22.6 °F

  • Average April

    41.9 °F

  • Highest 8 April, 2026

    70.6 °F

Climate (2021–Present)

La Crosse - La Crosse Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    50.2 °F

  • Average High 2021–2026

    59.8 °F
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