South Haven, KS Weather & Growing Conditions
Tonight
74°F
Mostly Clear
Mostly clear, with a low around 74. South wind around 9 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Mostly Clear | 9 mph S | 1% |
| Saturday | 98°F | Sunny | 9 to 15 mph S | 5% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 to 13 mph SSE | 60% |
| Sunday | 89°F | Showers And Thunderstorms Likely | 7 mph ESE | 55% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 8 mph NNE | 55% |
| Monday | 80°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 7 to 10 mph N | 22% |
| Monday Night | 57°F | Partly Cloudy | 9 mph NNE | 8% |
| Tuesday | 77°F | Mostly Sunny | 8 mph NE | 5% |
| Tuesday Night | 54°F | Partly Cloudy | 8 mph ENE | 1% |
| Wednesday | 78°F | Mostly Sunny | 7 mph E | 6% |
| Wednesday Night | 59°F | Partly Cloudy then Slight Chance Rain Showers | 6 mph E | 23% |
| Thursday | 80°F | Chance Rain Showers | 6 mph ESE | 30% |
| Thursday Night | 61°F | Chance Rain Showers | 6 mph E | 25% |
| Friday | 81°F | Chance Rain Showers | 7 mph SE | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Haven, KS
Last spring frost
Apr 15
First fall frost
Oct 29
Growing season
195 days
Hardiness zone
7a
Explore more for South Haven, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Wellington, Ks (13.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.