Alto Weather Forecast
- 49
- 83
Chance Thunderstorms
- 46
- 73
Sunny
- 53
- 85
Mostly Sunny
- 49
- 79
Mostly Sunny
- 50
- 78
Mostly Sunny
- 50
- 79
Mostly Sunny
Today 27 May Fond Du Lac
Partly sunny then becoming sunny in the late morning and early afternoon then becoming partly sunny. A 40 percent chance of light Showers and Thunderstorms late in the afternoon. Highs in the lower 80s. Northeast Winds up to 10 Mph.
Tonight 27 May Fond Du Lac
Cooler. Partly cloudy with a 40 percent chance of light rain Showers and Thunderstorms in the Evening, then clear in the late evening and overnight. Lows in the upper 40s. Northeast Winds 10 to 15 Mph.
Alto Temperature Statistics
May Temperature
Fond Du Lac County Airport (16.2 miles)
Lowest 2 May, 2026
28.7 °FAverage May
53.5 °FHighest 16 May, 2026
82.7 °F
Climate (2021–Present)
Fond Du Lac County Airport (16.2 miles)
Average Low 2021–2026
39.6 °FAverage 2021–2026
49.1 °FAverage High 2021–2026
58.4 °F