Magnolia, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Magnolia, a city in Rock County, Minnesota.
This Afternoon
52°F
Rain Showers
Rain showers. Cloudy. High near 52, with temperatures falling to around 45 in the afternoon. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Magnolia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Rain Showers | 15 mph NNW | 100% |
| Tonight | 39°F | Rain Showers | 15 mph NNW | 99% |
| Wednesday | 45°F | Rain Showers | 15 mph NW | 91% |
| Wednesday Night | 36°F | Rain Showers Likely | 10 mph NW | 65% |
| Thursday | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph N | 15% |
| Thursday Night | 31°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 45°F | Partly Sunny | 0 mph | 0% |
| Friday Night | 29°F | Mostly Cloudy | 0 mph | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 10 mph WSW | 2% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph W | 4% |
| Sunday | 56°F | Sunny | 5 mph WSW | 3% |
| Sunday Night | 36°F | Mostly Clear | 5 mph SSW | 1% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 36°F | Mostly Clear | 0 to 5 mph NW | 0% |
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 Nov 4, 2026.