Bison, SD Weather & Growing Conditions
Tonight
50°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3am, then showers and thunderstorms. Cloudy. Low around 50, with temperatures rising to around 52 overnight. East wind around 12 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Showers And Thunderstorms Likely | 12 mph E | 75% |
| Sunday | 60°F | Rain Showers | 10 to 15 mph E | 94% |
| Sunday Night | 47°F | Showers And Thunderstorms | 5 to 12 mph E | 90% |
| Monday | 64°F | Chance Rain Showers | 5 to 12 mph E | 52% |
| Monday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 14 mph SE | 15% |
| Tuesday | 69°F | Partly Sunny | 14 to 28 mph SE | 3% |
| Tuesday Night | 49°F | Mostly Cloudy | 20 to 26 mph SE | 2% |
| Wednesday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 20 to 23 mph SE | 26% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 5 to 20 mph E | 50% |
| Thursday | 81°F | Mostly Sunny | 3 to 7 mph NE | 7% |
| Thursday Night | 53°F | Mostly Clear | 7 mph SE | 2% |
| Friday | 81°F | Mostly Sunny | 7 to 24 mph SE | 3% |
| Friday Night | 55°F | Partly Cloudy then Slight Chance Rain Showers | 16 to 25 mph SE | 16% |
| Saturday | 79°F | Slight Chance Rain Showers | 15 to 18 mph SE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bison, SD
Last spring frost
May 10
First fall frost
Oct 1
Growing season
144 days
Hardiness zone
4b
Explore more for Bison, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Bison, Sd (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.