Ronneby, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ronneby, a community in Benton County, Minnesota.
Tonight
53°F
Chance Rain Showers
A chance of rain showers and patchy fog before 1am, then a chance of drizzle and patchy fog. Cloudy. Low around 53, with temperatures rising to around 56 overnight. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Ronneby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Chance Rain Showers | 10 to 15 mph E | 37% |
| Saturday | 64°F | Cloudy | 10 mph NE | 19% |
| Saturday Night | 50°F | Partly Cloudy | 5 to 10 mph NE | 3% |
| Sunday | 67°F | Partly Sunny | 10 to 15 mph NE | 0% |
| Sunday Night | 46°F | Mostly Cloudy | 10 mph ENE | 2% |
| Monday | 63°F | Partly Sunny | 5 to 10 mph E | 5% |
| Monday Night | 42°F | Partly Cloudy | 5 mph ENE | 5% |
| Tuesday | 64°F | Mostly Sunny | 5 to 10 mph ESE | 2% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Wednesday | 66°F | Sunny | 5 to 10 mph SE | 1% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 5 mph SSE | 11% |
| Thursday | 69°F | Partly Sunny | 0 to 10 mph SSE | 12% |
| Thursday Night | 49°F | Partly Cloudy | 0 to 5 mph SE | 5% |
| Friday | 71°F | Mostly Sunny | 0 to 10 mph SE | 10% |
Forecast source: National Weather Service (api.weather.gov) for Ronneby (45.685, -93.860). Updated through the day.
Growing snapshot for Ronneby
Last spring frost
May 8
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
4a
More local growing data for Ronneby: nearby ZIP 56329 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Milaca, Mn (12.6 mi from Ronneby). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.