South Haven, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Haven, a city in Stearns County, Minnesota.
Today
73°F
Partly Sunny
Partly sunny, with a high near 73. Northwest wind around 10 mph.
7-day forecast for South Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Partly Sunny | 10 mph NW | 1% |
| Tonight | 54°F | Partly Cloudy | 0 to 10 mph W | 1% |
| Wednesday | 77°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 82°F | Sunny | 5 to 10 mph SSW | 1% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph SSW | 3% |
| Friday | 85°F | Sunny | 5 to 10 mph SSW | 5% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph SSW | 20% |
| Saturday | 84°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SSW | 15% |
| Saturday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph NE | 48% |
| Sunday | 83°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph SW | 48% |
| Sunday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 16% |
| Monday | 82°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 18% |
| Monday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph NNE | 21% |
Forecast source: National Weather Service (api.weather.gov) for South Haven (45.293, -94.217). Updated through the day.
Growing snapshot for South Haven
Last spring frost
May 2
First fall frost
Oct 5
Growing season
156 days
Hardiness zone
4b
More local growing data for South Haven: nearby ZIP 55382 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Albany
Avon
Belgrade
Clearwater
Cold Spring
Elrosa
Fairhaven
Freeport
Greenwald
Holdingford
Kimball
Lake Henry
Meire Grove
Melrose
New Munich
Paynesville
Regal
Richmond
Rockville
Roscoe
Sartell
Sauk Centre
Sauk Rapids
Spring Hill
St. Anthony
St. Augusta
St. Cloud
St. John's University
St. Joseph
St. Martin
Climate data from the nearest NOAA station, Kimball 3N, Mn (6.3 mi from South Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.