Alto, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alto, a community in Fond Du Lac County, Wisconsin.
Today
82°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Southwest wind 0 to 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Alto
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 0 to 15 mph SW | 30% |
| Tonight | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph W | 70% |
| Wednesday | 77°F | Patchy Fog then Partly Sunny | 5 mph W | 34% |
| Wednesday Night | 56°F | Mostly Cloudy | 0 to 5 mph SW | 8% |
| Thursday | 79°F | Sunny | 0 to 5 mph SW | 5% |
| Thursday Night | 56°F | Mostly Clear | 0 to 5 mph S | 5% |
| Friday | 81°F | Sunny | 0 to 10 mph SW | 2% |
| Friday Night | 60°F | Mostly Clear | 5 to 10 mph SW | 8% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 14% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 33% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 10 mph SW | 33% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 53% |
| Monday | 81°F | Chance Rain Showers | 5 to 10 mph S | 43% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 5 mph NE | 41% |
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 Aug 4, 2026.