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.
This Afternoon
68°F
Light Rain
Rain. Cloudy, with a high near 68. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for St. Peter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Light Rain | 15 to 20 mph S | 97% |
| Tonight | 57°F | Light Rain | 15 mph S | 93% |
| Wednesday | 62°F | Light Rain | 15 mph S | 85% |
| Wednesday Night | 47°F | Chance Light Rain | 15 mph SW | 54% |
| Thursday | 53°F | Light Rain | 10 to 15 mph W | 84% |
| Thursday Night | 38°F | Chance Light Rain | 10 to 15 mph N | 48% |
| Friday | 47°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 22% |
| Friday Night | 33°F | Partly Cloudy | 5 to 10 mph N | 3% |
| Saturday | 50°F | Mostly Sunny | 5 mph W | 2% |
| Saturday Night | 34°F | Partly Cloudy | 5 to 10 mph W | 9% |
| Sunday | 55°F | Slight Chance Light Rain | 10 to 15 mph W | 16% |
| Sunday Night | 36°F | Mostly Clear | 10 mph W | 5% |
| Monday | 57°F | Mostly Sunny | 10 to 15 mph SW | 2% |
| Monday Night | 40°F | Partly Cloudy | 10 to 15 mph W | 1% |
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 Nov 3, 2026.