Summit Weather Forecast

    • 64
    • 81

    Chance Rain Showers

    • 66
    • 81

    Rain Showers

    • 54
    • 80

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 60
    • 82

    Chance Rain Showers

    • 56
    • 79

    Chance Thunderstorms

Today 7 Sep La Crosse

Mostly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 7 Sep La Crosse

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Temperature Statistics

September Temperature

La Crosse - La Crosse Regional Airport (1.9 miles)

  • Lowest 2 September, 2026

    66.7 °F

  • Average September

    79.1 °F

  • Highest 1 September, 2026

    90.6 °F

Climate (2021–2026)

La Crosse - La Crosse Regional Airport (1.9 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    59.9 °F
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