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.
Today
82°F
Partly Sunny
Partly sunny, with a high near 82. Southwest wind 10 to 15 mph. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for St. Peter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny | 10 to 15 mph SW | 10% |
| Tonight | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 75% |
| Wednesday | 76°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph W | 50% |
| Wednesday Night | 57°F | Partly Cloudy | 0 to 5 mph SW | 6% |
| Thursday | 78°F | Mostly Sunny | 0 to 5 mph SW | 4% |
| Thursday Night | 59°F | Mostly Clear | 5 mph S | 4% |
| Friday | 81°F | Sunny | 5 to 10 mph SW | 1% |
| Friday Night | 63°F | Mostly Clear | 10 mph SW | 8% |
| Saturday | 82°F | Sunny then Slight Chance Showers And Thunderstorms | 10 mph SW | 15% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 33% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 10 mph W | 33% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 49% |
| Monday | 81°F | Chance Rain Showers | 5 to 10 mph SW | 35% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 mph N | 42% |
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 Aug 4, 2026.