Ronneby, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ronneby, a community in Benton County, Minnesota.
This Afternoon
64°F
Mostly Cloudy
Mostly cloudy, with a high near 64. Northeast wind around 10 mph.
7-day forecast for Ronneby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Mostly Cloudy | 10 mph NE | 2% |
| Tonight | 50°F | Mostly Cloudy | 5 to 10 mph NE | 3% |
| Sunday | 67°F | Mostly Cloudy | 10 to 15 mph NE | 0% |
| Sunday Night | 45°F | Cloudy | 10 mph ENE | 0% |
| Monday | 63°F | Mostly Cloudy | 5 to 10 mph ENE | 3% |
| Monday Night | 41°F | Partly Cloudy | 5 mph ENE | 1% |
| Tuesday | 64°F | Sunny | 5 to 10 mph E | 0% |
| Tuesday Night | 41°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Wednesday | 66°F | Sunny | 5 to 10 mph ESE | 0% |
| Wednesday Night | 47°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Thursday | 67°F | Chance Rain Showers | 5 to 10 mph SE | 28% |
| Thursday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph SE | 19% |
| Friday | 71°F | Partly Sunny | 5 to 10 mph SE | 9% |
| Friday Night | 53°F | Partly Cloudy | 5 mph SE | 8% |
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 20, 2026.