Oronoco, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oronoco, a city in Olmsted County, Minnesota.
This Afternoon
62°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 62. East wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Oronoco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Showers And Thunderstorms | 9 to 13 mph E | 80% |
| Tonight | 56°F | Showers And Thunderstorms | 9 to 14 mph E | 85% |
| Saturday | 65°F | Showers And Thunderstorms Likely | 9 mph NE | 64% |
| Saturday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 9 mph NE | 35% |
| Sunday | 66°F | Mostly Cloudy | 9 to 13 mph NE | 7% |
| Sunday Night | 47°F | Mostly Cloudy | 9 mph E | 7% |
| Monday | 62°F | Mostly Cloudy then Chance Rain Showers | 9 mph E | 30% |
| Monday Night | 44°F | Chance Rain Showers then Mostly Cloudy | 5 to 8 mph E | 30% |
| Tuesday | 61°F | Mostly Sunny | 5 to 8 mph E | 9% |
| Tuesday Night | 43°F | Mostly Clear | 2 to 6 mph E | 3% |
| Wednesday | 65°F | Sunny | 5 mph SE | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 3 mph SE | 7% |
| Thursday | 68°F | Mostly Sunny | 1 to 5 mph S | 11% |
| Thursday Night | 50°F | Partly Cloudy | 3 mph S | 7% |
Forecast source: National Weather Service (api.weather.gov) for Oronoco (44.158, -92.539). Updated through the day.
Growing snapshot for Oronoco
Last spring frost
May 12
First fall frost
Sep 28
Growing season
139 days
Hardiness zone
4b
More local growing data for Oronoco: nearby ZIP 55960 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Byron 4North, Mn (6.2 mi from Oronoco). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.