Oacoma, SD Weather & Growing Conditions
This Afternoon
68°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 68. North northeast wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Rain Showers | 10 mph NNE | 34% |
| Tonight | 59°F | Slight Chance Rain Showers then Cloudy | 10 mph NE | 15% |
| Sunday | 61°F | Rain Showers | 10 to 14 mph ENE | 81% |
| Sunday Night | 51°F | Rain Showers | 8 to 12 mph ENE | 89% |
| Monday | 61°F | Rain Showers Likely | 10 mph ENE | 69% |
| Monday Night | 45°F | Mostly Cloudy | 6 to 9 mph ESE | 11% |
| Tuesday | 65°F | Partly Sunny | 6 to 16 mph SE | 6% |
| Tuesday Night | 50°F | Partly Cloudy | 14 to 17 mph SE | 11% |
| Wednesday | 68°F | Slight Chance Rain Showers | 17 to 22 mph SSE | 15% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 14 to 21 mph SE | 51% |
| Thursday | 75°F | Chance Rain Showers then Partly Sunny | 9 to 14 mph SSE | 44% |
| Thursday Night | 55°F | Partly Cloudy | 6 to 9 mph ESE | 11% |
| Friday | 75°F | Partly Sunny | 6 to 16 mph SE | 10% |
| Friday Night | 58°F | Chance Rain Showers | 15 mph SE | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oacoma, SD
Last spring frost
May 1
First fall frost
Oct 7
Growing season
158 days
Hardiness zone
5a
Explore more for Oacoma, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Chamberlain Muni Ap, Sd (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.