Ortonville, MN Weather & Growing Conditions
Tonight
55°F
Areas Of Drizzle
Areas of drizzle and patchy fog. Cloudy, with a low around 55. East northeast wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Areas Of Drizzle | 9 mph ENE | 45% |
| Saturday | 66°F | Patchy Fog | 7 to 10 mph NE | 11% |
| Saturday Night | 52°F | Mostly Cloudy | 8 mph NNE | 4% |
| Sunday | 67°F | Mostly Cloudy | 8 to 12 mph ENE | 5% |
| Sunday Night | 49°F | Cloudy then Slight Chance Rain Showers | 8 mph ENE | 17% |
| Monday | 64°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph E | 17% |
| Monday Night | 45°F | Mostly Cloudy | 6 mph E | 3% |
| Tuesday | 65°F | Mostly Sunny | 3 to 10 mph SE | 0% |
| Tuesday Night | 46°F | Partly Cloudy | 8 mph SE | 2% |
| Wednesday | 67°F | Mostly Sunny | 8 to 13 mph SE | 9% |
| Wednesday Night | 50°F | Mostly Cloudy then Chance Rain Showers | 9 mph SE | 29% |
| Thursday | 72°F | Chance Rain Showers then Partly Sunny | 9 mph SSE | 29% |
| Thursday Night | 52°F | Partly Cloudy | 6 mph SE | 8% |
| Friday | 72°F | Partly Sunny | 6 to 12 mph SSE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ortonville, MN
Last spring frost
May 1
First fall frost
Oct 8
Growing season
159 days
Hardiness zone
4b
Explore more for Ortonville, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Artichoke Lake 1 E, Mn (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.