Princeton, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Mille Lacs County, Minnesota.
This Afternoon
57°F
Light Rain
Rain and patchy fog. Cloudy. High near 57, with temperatures falling to around 53 in the afternoon. North wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Light Rain | 10 to 15 mph N | 100% |
| Tonight | 48°F | Rain | 10 mph N | 98% |
| Wednesday | 54°F | Rain | 10 to 15 mph NNE | 100% |
| Wednesday Night | 42°F | Light Rain | 10 to 15 mph NNW | 89% |
| Thursday | 47°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 17% |
| Thursday Night | 31°F | Mostly Cloudy | 5 to 10 mph NNE | 0% |
| Friday | 44°F | Mostly Sunny | 0 to 5 mph ENE | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 10 mph SW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 6% |
| Sunday | 54°F | Mostly Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 35°F | Partly Cloudy | 5 mph SW | 0% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 1% |
| Monday Night | 36°F | Mostly Clear | 5 to 10 mph WNW | 1% |
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 Nov 3, 2026.