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Alto, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Alto, a community in Fond Du Lac County, Wisconsin.

Tonight
55°F
Showers And Thunderstorms
Rain showers before 10pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 55. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast for Alto

WhenTempForecastWindPrecip
Tonight 55°F Showers And Thunderstorms 10 to 15 mph E 98%
Saturday 67°F Showers And Thunderstorms 10 to 15 mph E 94%
Saturday Night 55°F Showers And Thunderstorms 10 to 15 mph NE 77%
Sunday 66°F Chance Rain Showers 15 mph NE 31%
Sunday Night 49°F Mostly Cloudy 10 to 15 mph NE 9%
Monday 62°F Mostly Cloudy 10 to 15 mph NE 10%
Monday Night 45°F Mostly Cloudy 10 to 15 mph NE 11%
Tuesday 61°F Partly Sunny 10 to 15 mph NE 11%
Tuesday Night 44°F Partly Cloudy 5 to 10 mph NE 7%
Wednesday 64°F Mostly Sunny 5 to 10 mph NE 5%
Wednesday Night 46°F Partly Cloudy 0 to 5 mph NE 2%
Thursday 68°F Mostly Sunny 0 to 5 mph NE 2%
Thursday Night 48°F Partly Cloudy 0 to 5 mph NE 5%
Friday 70°F Mostly Sunny 0 to 5 mph NE 3%

Forecast source: National Weather Service (api.weather.gov) for Alto (43.668, -88.792). Updated through the day.

Growing snapshot for Alto

Last spring frost
May 1
First fall frost
Oct 11
Growing season
163 days
Hardiness zone
5a

More local growing data for Alto: nearby ZIP 53963 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Town Of Westford, Wi (13.4 mi from Alto). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.