Alto, WI Weather & Growing Conditions

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

This Afternoon

68°F

Chance Light Rain

A chance of rain. Cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Alto

When	Temp	Forecast	Wind	Precip
This Afternoon	68°F	Chance Light Rain	15 mph S	48%
Tonight	56°F	Light Rain	15 mph S	96%
Wednesday	62°F	Light Rain	10 to 15 mph S	90%
Wednesday Night	45°F	Light Rain Likely	10 to 15 mph SW	74%
Thursday	53°F	Light Rain	5 to 10 mph W	87%
Thursday Night	36°F	Chance Light Rain then Mostly Cloudy	10 to 15 mph N	37%
Friday	47°F	Slight Chance Light Rain then Partly Sunny	5 to 15 mph N	19%
Friday Night	29°F	Partly Cloudy	0 to 5 mph N	3%
Saturday	50°F	Mostly Sunny	0 to 5 mph W	1%
Saturday Night	32°F	Partly Cloudy	0 to 5 mph W	9%
Sunday	56°F	Slight Chance Light Rain	5 to 10 mph W	17%
Sunday Night	33°F	Mostly Clear	5 mph W	3%
Monday	59°F	Mostly Sunny	5 to 15 mph SW	2%
Monday Night	37°F	Partly Cloudy	10 mph W	0%

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

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

Nearby towns & communities

Brandon Brothertown Campbellsport Eden Fairwater Fond du Lac Mount Calvary North Fond du Lac Oakfield Ripon Rosendale St. Cloud St. Peter Taycheedah Van Dyne Waupun

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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 Nov 3, 2026.