Alto Weather Forecast
- 59
- 85
Slight Chance Thunderstorms
- 59
- 76
Rain Showers
- 59
- 74
Chance Thunderstorms
- 56
- 75
Chance Thunderstorms
- 57
- 75
Chance Rain Showers
- 55
- 74
Slight Chance Rain Showers
- 53
- 72
Partly Sunny
Today 18 Sep Fond Du Lac
Mostly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.
Tonight 18 Sep Fond Du Lac
Partly cloudy in the evening then becoming mostly cloudy. Lows around 60. East Winds 5 to 10 Mph.
Alto Temperature Statistics
September Temperature
Fond Du Lac County Airport (16.2 miles)
Lowest 4 September, 2025
41 °FAverage September
61 °FHighest 16 September, 2025
82 °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