Hayti, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hayti, a town in Hamlin County, South Dakota.
Today
65°F
Areas Of Fog
Areas of fog and a slight chance of drizzle. Mostly cloudy. High near 65, with temperatures falling to around 62 in the afternoon. Northeast wind 6 to 13 mph, with gusts as high as 21 mph.
7-day forecast for Hayti
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Areas Of Fog | 6 to 13 mph NE | 10% |
| Tonight | 51°F | Patchy Fog then Mostly Cloudy | 7 to 13 mph NE | 8% |
| Sunday | 65°F | Mostly Cloudy | 12 to 15 mph NE | 6% |
| Sunday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 14 mph ENE | 17% |
| Monday | 63°F | Slight Chance Rain Showers | 10 mph E | 18% |
| Monday Night | 44°F | Partly Cloudy | 5 to 9 mph E | 6% |
| Tuesday | 65°F | Mostly Sunny | 5 to 13 mph SE | 3% |
| Tuesday Night | 45°F | Partly Cloudy | 10 mph SE | 1% |
| Wednesday | 67°F | Mostly Sunny | 10 to 15 mph SSE | 8% |
| Wednesday Night | 50°F | Chance Rain Showers | 12 mph SSE | 30% |
| Thursday | 69°F | Chance Rain Showers | 10 to 14 mph SSE | 30% |
| Thursday Night | 52°F | Mostly Cloudy | 9 mph SSE | 14% |
| Friday | 72°F | Partly Sunny | 7 to 15 mph SSE | 14% |
| Friday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 13 mph SSE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Hayti (44.659, -97.205). Updated through the day.
Growing snapshot for Hayti
Last spring frost
May 6
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
More local growing data for Hayti: nearby ZIP 57241 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Castlewood #2, Sd (9.5 mi from Hayti). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.