Bonesteel, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonesteel, a city in Gregory County, South Dakota.
Today
68°F
Patchy Drizzle then Cloudy
Patchy drizzle and patchy fog before noon. Cloudy. High near 68, with temperatures falling to around 64 in the afternoon. North wind around 10 mph.
7-day forecast for Bonesteel
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Patchy Drizzle then Cloudy | 10 mph N | 13% |
| Tonight | 55°F | Cloudy then Slight Chance Rain Showers | 10 mph NNE | 24% |
| Sunday | 61°F | Rain Showers Likely | 10 to 15 mph NE | 61% |
| Sunday Night | 52°F | Rain Showers | 10 mph ENE | 81% |
| Monday | 59°F | Rain Showers | 10 mph E | 81% |
| Monday Night | 47°F | Mostly Cloudy | 5 to 10 mph ESE | 8% |
| Tuesday | 64°F | Partly Sunny | 5 to 15 mph SE | 8% |
| Tuesday Night | 50°F | Mostly Cloudy | 10 to 15 mph SE | 13% |
| Wednesday | 68°F | Slight Chance Rain Showers | 15 to 20 mph SSE | 21% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 15 mph SSE | 39% |
| Thursday | 71°F | Chance Showers And Thunderstorms | 10 to 15 mph SSE | 39% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 10 mph SE | 17% |
| Friday | 72°F | Slight Chance Rain Showers then Partly Sunny | 10 to 15 mph SSE | 17% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph SSE | 21% |
Forecast source: National Weather Service (api.weather.gov) for Bonesteel (43.078, -98.947). Updated through the day.
Growing snapshot for Bonesteel
Last spring frost
May 3
First fall frost
Oct 10
Growing season
159 days
Hardiness zone
5a
More local growing data for Bonesteel: nearby ZIP 57317 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bonesteel, Sd (4.6 mi from Bonesteel). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.