Trempealeau Weather Forecast

    • 48
    • 64

    Increasing Clouds

    • 52
    • 65

    Mostly Cloudy

    • 51
    • 67

    Mostly Cloudy

    • 53
    • 64

    Rain Showers Likely

    • 55
    • 68

    Mostly Cloudy

    • 56
    • 71

    Mostly Cloudy

Today 23 Sep Trempealeau

Mostly sunny. Highs in the mid 60s. East Winds 5 to 10 Mph.

Tonight 23 Sep Trempealeau

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 40s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Trempealeau Temperature Statistics

September Temperature

La Crosse - La Crosse Regional Airport (12.4 miles)

  • Lowest 14 September, 2026

    46.7 °F

  • Average September

    69.5 °F

  • Highest 1 September, 2026

    90.6 °F

Climate (2021–2026)

La Crosse - La Crosse Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    59.8 °F
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