Princeton, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Mille Lacs County, Minnesota.
Overnight
61°F
Mostly Cloudy
Mostly cloudy, with a low around 61. North northwest wind around 10 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Mostly Cloudy | 10 mph NNW | 7% |
| Tuesday | 75°F | Partly Sunny | 10 mph WNW | 5% |
| Tuesday Night | 53°F | Partly Cloudy | 0 to 10 mph W | 0% |
| Wednesday | 78°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 5 to 10 mph SW | 1% |
| Thursday | 84°F | Sunny | 5 to 15 mph SSW | 1% |
| Thursday Night | 63°F | Mostly Clear | 5 to 15 mph SSW | 4% |
| Friday | 86°F | Sunny | 5 to 10 mph SSW | 13% |
| Friday Night | 61°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Saturday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SSW | 17% |
| Saturday Night | 62°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 48% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 5 to 10 mph NNW | 48% |
| Sunday Night | 62°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 17% |
| Monday | 82°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 17% |
Forecast source: National Weather Service (api.weather.gov) for Princeton (45.568, -93.590). Updated through the day.
Growing snapshot for Princeton
Last spring frost
May 7
First fall frost
Sep 28
Growing season
144 days
Hardiness zone
4b
More local growing data for Princeton: nearby ZIP 55371 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Santiago 3 E, Mn (8.4 mi from Princeton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.