Wanamingo, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wanamingo, a city in Goodhue County, Minnesota.
This Afternoon
61°F
Patchy Fog
Patchy fog and showers and thunderstorms. Cloudy, with a high near 61. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Wanamingo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Patchy Fog | 15 mph E | 78% |
| Tonight | 55°F | Patchy Fog | 10 to 15 mph ESE | 95% |
| Saturday | 64°F | Patchy Fog then Drizzle Likely | 10 mph ENE | 63% |
| Saturday Night | 52°F | Slight Chance Drizzle then Mostly Cloudy | 5 to 10 mph NNE | 21% |
| Sunday | 66°F | Mostly Cloudy | 10 to 15 mph NE | 9% |
| Sunday Night | 47°F | Mostly Cloudy | 5 to 10 mph ENE | 6% |
| Monday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph ENE | 22% |
| Monday Night | 43°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 22% |
| Tuesday | 61°F | Mostly Sunny | 5 to 10 mph E | 7% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph ESE | 3% |
| Wednesday | 65°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph SSE | 8% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph S | 10% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph S | 7% |
Forecast source: National Weather Service (api.weather.gov) for Wanamingo (44.303, -92.787). Updated through the day.
Growing snapshot for Wanamingo
Last spring frost
May 9
First fall frost
Sep 30
Growing season
144 days
Hardiness zone
4b
More local growing data for Wanamingo: nearby ZIP 55983 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Zumbrota, Mn (7 mi from Wanamingo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.