Cavour, SD Weather & Growing Conditions
Today
67°F
Cloudy
Cloudy, with a high near 67. North northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Cloudy | 10 mph NNE | 7% |
| Tonight | 53°F | Mostly Cloudy | 5 to 10 mph NNE | 6% |
| Sunday | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Sunday Night | 50°F | Chance Rain Showers | 10 mph ENE | 47% |
| Monday | 63°F | Chance Rain Showers | 5 to 10 mph E | 47% |
| Monday Night | 45°F | Mostly Cloudy | 5 mph ESE | 11% |
| Tuesday | 67°F | Mostly Sunny | 5 to 15 mph SE | 2% |
| Tuesday Night | 47°F | Partly Cloudy | 10 to 15 mph SE | 3% |
| Wednesday | 69°F | Partly Sunny | 15 mph SSE | 13% |
| Wednesday Night | 52°F | Chance Rain Showers | 10 to 15 mph SSE | 33% |
| Thursday | 71°F | Chance Rain Showers | 10 to 15 mph SSE | 33% |
| Thursday Night | 54°F | Mostly Cloudy | 10 mph SE | 13% |
| Friday | 73°F | Partly Sunny | 10 to 15 mph SE | 13% |
| Friday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph SE | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cavour, SD
Last spring frost
May 6
First fall frost
Oct 2
Growing season
146 days
Hardiness zone
4b
Explore more for Cavour, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Huron Rgnl Ap, Sd (11 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.