Cavour, SD Weather & Growing Conditions
Today
73°F
Partly Sunny
Partly sunny, with a high near 73. Northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Partly Sunny | 5 to 10 mph NW | 4% |
| Tonight | 52°F | Partly Cloudy | 5 mph SSW | 1% |
| Wednesday | 80°F | Sunny | 5 to 10 mph S | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 10 mph SSW | 1% |
| Thursday | 86°F | Sunny | 10 to 15 mph S | 4% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph S | 6% |
| Friday | 88°F | Sunny | 10 mph S | 6% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph SSE | 5% |
| Saturday | 90°F | Sunny | 10 to 15 mph SE | 5% |
| Saturday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 16% |
| Sunday | 87°F | Mostly Sunny | 10 to 15 mph E | 8% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 24% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph ENE | 24% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 16% |
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 Aug 4, 2026.