Princeton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Green Lake County, Wisconsin.
Tonight
55°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 55. East wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Showers And Thunderstorms | 10 mph E | 99% |
| Saturday | 64°F | Showers And Thunderstorms | 5 to 10 mph E | 90% |
| Saturday Night | 53°F | Showers And Thunderstorms | 10 mph NE | 77% |
| Sunday | 66°F | Slight Chance Rain Showers then Mostly Sunny | 15 mph NE | 18% |
| Sunday Night | 47°F | Mostly Cloudy | 10 to 15 mph NE | 1% |
| Monday | 62°F | Mostly Cloudy | 10 to 15 mph NE | 12% |
| Monday Night | 44°F | Mostly Cloudy | 10 mph NE | 14% |
| Tuesday | 61°F | Partly Sunny | 10 to 15 mph NE | 14% |
| Tuesday Night | 44°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 47°F | Partly Cloudy | 0 to 5 mph N | 6% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov) for Princeton (43.856, -89.125). Updated through the day.
Growing snapshot for Princeton
Last spring frost
May 3
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
5a
More local growing data for Princeton: nearby ZIP 54968 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Montello, Wi (10.1 mi from Princeton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.