Bon Homme Colony, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bon Homme Colony, a community in Bon Homme County, South Dakota.
Today
46°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 46. West northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Bon Homme Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 46°F | Chance Rain Showers | 15 to 20 mph WNW | 43% |
| Tonight | 37°F | Chance Rain Showers | 15 mph NW | 25% |
| Thursday | 46°F | Mostly Cloudy | 10 to 15 mph NNW | 0% |
| Thursday Night | 31°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 31°F | Partly Cloudy | 5 mph SSE | 0% |
| Saturday | 56°F | Sunny | 5 mph SW | 0% |
| Saturday Night | 36°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 58°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 41°F | Mostly Clear | 5 to 15 mph SSW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 59°F | Mostly Sunny | 5 mph WSW | 0% |
| Tuesday Night | 42°F | Partly Cloudy | 5 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Bon Homme Colony (42.865, -97.705). Updated through the day.
Growing snapshot for Bon Homme Colony
Last spring frost
May 1
First fall frost
Oct 7
Growing season
158 days
Hardiness zone
5a
More local growing data for Bon Homme Colony: nearby ZIP 57063 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tyndall, Sd (10.3 mi from Bon Homme Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.