Alcester, SD Weather & Growing Conditions
Today
70°F
Patchy Smoke
Patchy smoke and scattered rain showers before 10am, then patchy smoke and scattered showers and thunderstorms between 10am and noon, then patchy smoke and showers and thunderstorms. Mostly cloudy, with a high near 70. North northwest wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Patchy Smoke | 5 to 15 mph NNW | 82% |
| Tonight | 53°F | Scattered Rain Showers then Mostly Cloudy | 0 to 5 mph NW | 54% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph SE | 1% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph S | 0% |
| Thursday | 81°F | Mostly Sunny | 5 to 15 mph S | 0% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph S | 2% |
| Friday | 86°F | Sunny | 5 to 15 mph SSW | 4% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph S | 12% |
| Saturday | 89°F | Sunny | 5 to 15 mph SSE | 5% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SE | 16% |
| Sunday | 88°F | Mostly Sunny | 10 to 15 mph SE | 12% |
| Sunday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 15% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph E | 15% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alcester, SD
Last spring frost
May 1
First fall frost
Oct 4
Growing season
155 days
Hardiness zone
5a
Explore more for Alcester, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Hawarden, Ia (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.