Princeton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Green Lake County, Wisconsin.
Today
64°F
Showers And Thunderstorms
A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms between 9am and 10am, then showers and thunderstorms. Cloudy, with a high near 64. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Showers And Thunderstorms | 10 mph E | 81% |
| Tonight | 54°F | Showers And Thunderstorms Likely | 10 mph NE | 66% |
| Sunday | 66°F | Mostly Cloudy | 10 to 15 mph NE | 13% |
| Sunday Night | 46°F | Mostly Cloudy | 10 to 15 mph NE | 4% |
| Monday | 61°F | Mostly Cloudy | 10 to 15 mph NE | 4% |
| Monday Night | 44°F | Mostly Cloudy | 5 to 10 mph NE | 2% |
| Tuesday | 61°F | Mostly Sunny | 5 to 15 mph NE | 2% |
| Tuesday Night | 43°F | Mostly Clear | 5 to 10 mph NE | 2% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 45°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 66°F | Mostly Sunny | 0 to 5 mph NE | 3% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph NE | 3% |
| Friday Night | 47°F | Partly Cloudy | 0 to 5 mph E | 2% |
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.