South Haven, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Haven, a city in Van Buren County, Michigan.
Today
81°F
Sunny
Sunny, with a high near 81. South southwest wind 6 to 9 mph.
7-day forecast for South Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 6 to 9 mph SSW | 0% |
| Tonight | 65°F | Partly Cloudy | 3 to 7 mph SSW | 5% |
| Wednesday | 78°F | Chance Rain Showers | 6 to 9 mph SW | 50% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 6 mph W | 85% |
| Thursday | 76°F | Showers And Thunderstorms | 3 to 7 mph WSW | 83% |
| Thursday Night | 61°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph E | 27% |
| Friday | 79°F | Mostly Sunny | 2 to 6 mph SW | 9% |
| Friday Night | 64°F | Mostly Clear | 5 mph WSW | 7% |
| Saturday | 81°F | Mostly Sunny | 5 to 9 mph SW | 10% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 7 mph SSW | 26% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 8 to 13 mph SW | 26% |
| Sunday Night | 67°F | Chance Rain Showers | 7 to 10 mph SW | 47% |
| Monday | 81°F | Chance Rain Showers | 9 mph SW | 47% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 8 mph W | 52% |
Forecast source: National Weather Service (api.weather.gov) for South Haven (42.401, -86.268). Updated through the day.
Growing snapshot for South Haven
Last spring frost
Apr 17
First fall frost
Nov 5
Growing season
201 days
Hardiness zone
6b
More local growing data for South Haven: nearby ZIP 49090 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, S Haven, Mi (3.5 mi from South Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.