Alto Weather Forecast
- 42
- 57
Decreasing Clouds
- 40
- 61
Partly Sunny
- 40
- 63
Mostly Sunny
- 47
- 67
Partly Sunny
- 53
- 70
Chance Rain Showers
- 52
- 73
Mostly Cloudy
Today 5 Sep Fond Du Lac
Breezy. Partly sunny. Highs in the upper 50s. West Winds 15 to 25 Mph.
Tonight 5 Sep Fond Du Lac
Mostly clear. Lows in the lower 40s. West Winds 5 to 15 Mph.
Alto Temperature Statistics
September Temperature
Fond Du Lac County Airport (16.2 miles)
Lowest 1 September, 2025
46.9 °FAverage September
62.2 °FHighest 1 September, 2025
75.9 °F
Climate (2020–Present)
Fond Du Lac County Airport (16.2 miles)
Average Low 2020–2025
39.9 °FAverage 2020–2025
49.3 °FAverage High 2020–2025
58.4 °F