St. Peter, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Peter, a community in Fond Du Lac County, Wisconsin.
Overnight
54°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 54, with temperatures rising to around 59 overnight. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for St. Peter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Showers And Thunderstorms | 10 to 15 mph E | 100% |
| Saturday | 64°F | Showers And Thunderstorms | 10 to 15 mph E | 98% |
| Saturday Night | 55°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 71% |
| Sunday | 65°F | Scattered Rain Showers then Partly Sunny | 15 mph NE | 25% |
| Sunday Night | 50°F | Mostly Cloudy | 10 to 15 mph NE | 1% |
| Monday | 60°F | Mostly Cloudy | 10 to 15 mph NE | 2% |
| Monday Night | 47°F | Mostly Cloudy | 10 to 15 mph NE | 1% |
| Tuesday | 60°F | Mostly Sunny | 10 to 15 mph NE | 2% |
| Tuesday Night | 47°F | Mostly Clear | 5 to 10 mph NE | 2% |
| Wednesday | 63°F | Mostly Sunny | 5 to 15 mph NE | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 65°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Friday | 69°F | Mostly Sunny | 5 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for St. Peter (43.838, -88.343). Updated through the day.
Growing snapshot for St. Peter
Last spring frost
May 1
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
5b
More local growing data for St. Peter: nearby ZIP 53049 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Alto
Brandon
Brothertown
Campbellsport
Eden
Fairwater
Fond du Lac
Mount Calvary
North Fond du Lac
Oakfield
Ripon
Rosendale
St. Cloud
Taycheedah
Van Dyne
Waupun
Climate data from the nearest NOAA station, Fond Du Lac Wwtp, Wi (10.3 mi from St. Peter). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.