South Haven, MN Weather & Growing Conditions
This Afternoon
73°F
Partly Sunny
Partly sunny, with a high near 73. West northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Partly Sunny | 10 mph WNW | 4% |
| Tonight | 52°F | Partly Cloudy | 0 to 10 mph W | 1% |
| Wednesday | 79°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 5 to 10 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). Updated through the day.
Growing snapshot for South Haven, MN
Last spring frost
May 2
First fall frost
Oct 5
Growing season
156 days
Hardiness zone
4b
Explore more for South Haven, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Kimball 3N, Mn (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.