Owatonna, MN Weather & Growing Conditions
Today
71°F
Mostly Cloudy then Patchy Smoke
Patchy smoke between noon and 3pm, then patchy smoke and a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 71. Northwest wind around 10 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Cloudy then Patchy Smoke | 10 mph NW | 22% |
| Tonight | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph W | 20% |
| Wednesday | 74°F | Mostly Sunny | 0 to 5 mph WNW | 1% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Thursday | 76°F | Sunny | 5 to 10 mph SSW | 1% |
| Thursday Night | 60°F | Mostly Clear | 10 mph S | 2% |
| Friday | 80°F | Sunny | 10 to 15 mph SSW | 9% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 19% |
| Saturday | 80°F | Sunny | 5 to 10 mph S | 13% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 10 mph WSW | 41% |
| Sunday | 80°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 41% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph ENE | 33% |
| Monday | 79°F | Chance Showers And Thunderstorms | 10 mph ENE | 33% |
| Monday Night | 64°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 22% |
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 Aug 4, 2026.