Lake Onalaska Weather Forecast

    • 25
    • 39

    Mostly Cloudy

    • 29
    • 37

    Wintry Mix

    • 11
    • 35

    Rain/Snow

    • -2
    • 19

    Partly Sunny

    • 16
    • 24

    Chance Snow

    • 28
    • 40

    Mostly Cloudy

Today 13 Mar La Crosse

Partly sunny and breezy. Near steady temperature in the upper 30s. Northwest Winds 20 to 25 Mph with Gusts up to 40 Mph.

Tonight 13 Mar La Crosse

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 20s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Onalaska Temperature Statistics

March Temperature

La Crosse - La Crosse Regional Airport (2.5 miles)

  • Lowest 1 March, 2026

    15.7 °F

  • Average March

    40.1 °F

  • Highest 9 March, 2026

    68 °F

Climate (2021–Present)

La Crosse - La Crosse Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    41 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    59.9 °F
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