Hayti, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hayti, a town in Hamlin County, South Dakota.
Today
71°F
Mostly Sunny
Mostly sunny, with a high near 71. Northwest wind 8 to 13 mph.
7-day forecast for Hayti
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 8 to 13 mph NW | 2% |
| Tonight | 53°F | Mostly Clear | 2 to 7 mph SW | 0% |
| Wednesday | 77°F | Sunny | 5 to 13 mph SSW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 8 to 12 mph SSW | 1% |
| Thursday | 82°F | Sunny | 12 to 17 mph SSW | 3% |
| Thursday Night | 62°F | Mostly Clear | 12 mph S | 4% |
| Friday | 85°F | Sunny | 12 mph SW | 10% |
| Friday Night | 62°F | Mostly Clear | 7 mph SSE | 10% |
| Saturday | 85°F | Sunny | 6 to 15 mph SE | 6% |
| Saturday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 14 mph ESE | 20% |
| Sunday | 83°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 13 mph E | 16% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms | 12 mph E | 22% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 14 mph ENE | 22% |
| Monday Night | 62°F | Slight Chance Showers And Thunderstorms | 9 to 15 mph ENE | 15% |
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 Aug 4, 2026.