Magnolia, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Magnolia, a city in Rock County, Minnesota.
This Afternoon
70°F
Patchy Fog
Patchy fog before 5pm, then patchy fog and a slight chance of showers and thunderstorms. Cloudy, with a high near 70. East southeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Magnolia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Patchy Fog | 5 mph ESE | 16% |
| Tonight | 60°F | Areas Of Fog | 5 mph NE | 23% |
| Saturday | 66°F | Patchy Fog | 5 to 10 mph NNE | 24% |
| Saturday Night | 54°F | Mostly Cloudy | 10 mph NNE | 3% |
| Sunday | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 19% |
| Sunday Night | 50°F | Chance Rain Showers | 10 mph ENE | 46% |
| Monday | 60°F | Chance Rain Showers | 10 mph ENE | 49% |
| Monday Night | 45°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 39% |
| Tuesday | 62°F | Partly Sunny | 5 mph E | 7% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph SE | 0% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph SSE | 8% |
| Wednesday Night | 49°F | Mostly Cloudy then Chance Rain Showers | 5 mph SSE | 27% |
| Thursday | 69°F | Chance Rain Showers | 5 mph SSE | 27% |
| Thursday Night | 52°F | Mostly Cloudy | 0 to 5 mph SSE | 12% |
Forecast source: National Weather Service (api.weather.gov) for Magnolia (43.644, -96.075). Updated through the day.
Growing snapshot for Magnolia
Last spring frost
May 1
First fall frost
Oct 4
Growing season
156 days
Hardiness zone
5a
More local growing data for Magnolia: nearby ZIP 56158 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rock Rapids, Ia (14.7 mi from Magnolia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.