Oronoco, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oronoco, a city in Olmsted County, Minnesota.
This Afternoon
50°F
Rain Showers Likely
Rain showers likely. Cloudy. High near 50, with temperatures falling to around 47 in the afternoon. Southwest wind around 12 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Oronoco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Rain Showers Likely | 12 mph SW | 62% |
| Tonight | 44°F | Rain Showers | 8 to 13 mph W | 88% |
| Thursday | 46°F | Chance Rain Showers then Cloudy | 13 to 16 mph N | 49% |
| Thursday Night | 32°F | Mostly Cloudy | 8 to 13 mph N | 6% |
| Friday | 46°F | Sunny | 3 to 9 mph N | 0% |
| Friday Night | 26°F | Mostly Clear | 3 mph W | 0% |
| Saturday | 50°F | Mostly Sunny | 2 to 8 mph SW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 7 mph SW | 1% |
| Sunday | 56°F | Sunny | 7 mph W | 1% |
| Sunday Night | 36°F | Mostly Clear | 3 to 7 mph SW | 0% |
| Monday | 63°F | Sunny | 7 to 12 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 57°F | Sunny | 6 mph NW | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 5 mph W | 1% |
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 Nov 5, 2026.