Summit Weather Forecast
- 64
- 83
Rain Showers Likely
- 61
- 75
Rain Showers
- 60
- 74
Chance Thunderstorms
- 58
- 75
Chance Thunderstorms
- 58
- 77
Chance Rain Showers
- 56
- 75
Partly Sunny
- 54
- 74
Mostly Sunny
Today 18 Sep La Crosse
Partly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. Light Winds. Chance of rain 20 percent.
Tonight 18 Sep La Crosse
Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.
Summit Temperature Statistics
September Temperature
La Crosse - La Crosse Regional Airport (1.9 miles)
Lowest 7 September, 2025
39.9 °FAverage September
64.9 °FHighest 16 September, 2025
87.1 °F
Climate (2020–Present)
La Crosse - La Crosse Regional Airport (1.9 miles)
Average Low 2020–2025
40.9 °FAverage 2020–2025
50.2 °FAverage High 2020–2025
59.8 °F