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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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
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.