Magnolia, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Magnolia, a city in Rock County, Minnesota.
Today
72°F
Chance Rain Showers
Patchy smoke before 10am, then a chance of rain showers and patchy smoke. Mostly cloudy, with a high near 72. Northwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Magnolia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Chance Rain Showers | 5 to 10 mph NW | 59% |
| Tonight | 51°F | Isolated Rain Showers then Partly Cloudy | 0 to 5 mph WNW | 22% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 53°F | Mostly Clear | 5 mph S | 0% |
| Thursday | 81°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 5 to 15 mph SSW | 2% |
| Friday | 85°F | Sunny | 5 to 10 mph SSW | 7% |
| Friday Night | 63°F | Mostly Clear | 5 to 10 mph S | 13% |
| Saturday | 86°F | Sunny | 5 to 15 mph S | 6% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 10 to 20 mph ESE | 29% |
| Sunday | 84°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph ESE | 15% |
| Sunday Night | 66°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph E | 28% |
| Monday | 83°F | Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 28% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 22% |
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 Aug 4, 2026.