Owatonna, MN Weather & Growing Conditions
Tonight
46°F
Rain
Rain and areas of fog. Cloudy. Low around 46, with temperatures rising to around 50 overnight. North northwest wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Rain | 5 to 10 mph NNW | 96% |
| Wednesday | 52°F | Light Rain | 10 to 15 mph W | 94% |
| Wednesday Night | 41°F | Light Rain | 10 to 15 mph WNW | 86% |
| Thursday | 47°F | Light Rain Likely | 15 mph NNW | 62% |
| Thursday Night | 33°F | Mostly Cloudy | 5 to 10 mph N | 13% |
| Friday | 45°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph WSW | 8% |
| Sunday | 56°F | Mostly Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 36°F | Partly Cloudy | 5 to 10 mph SW | 1% |
| Monday | 59°F | Mostly Sunny | 10 to 15 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph WNW | 1% |
| Tuesday | 55°F | Mostly Sunny | 5 mph WNW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Owatonna, MN
Last spring frost
May 5
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
4b
Explore more for Owatonna, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Owatonna, Mn (2.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.