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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

WhenTempForecastWindPrecip
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

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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.