Gregory, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gregory, a city in Gregory County, South Dakota.
Today
69°F
Slight Chance Rain Showers then Patchy Smoke
A slight chance of rain showers before 8am, then patchy smoke and a slight chance of rain showers between 8am and 1pm. Mostly cloudy, with a high near 69. North northwest wind 5 to 15 mph. Chance of precipitation is 20%.
7-day forecast for Gregory
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Slight Chance Rain Showers then Patchy Smoke | 5 to 15 mph NNW | 19% |
| Tonight | 53°F | Partly Cloudy | 5 mph WSW | 4% |
| Wednesday | 76°F | Mostly Sunny | 5 to 10 mph SSW | 2% |
| Wednesday Night | 58°F | Mostly Clear | 10 to 15 mph S | 1% |
| Thursday | 85°F | Sunny | 15 to 20 mph S | 6% |
| Thursday Night | 64°F | Mostly Clear | 15 mph S | 6% |
| Friday | 90°F | Sunny | 10 to 15 mph SSW | 3% |
| Friday Night | 65°F | Mostly Clear | 10 mph SSE | 6% |
| Saturday | 93°F | Sunny | 15 to 25 mph S | 3% |
| Saturday Night | 66°F | Mostly Clear | 10 to 20 mph SSE | 5% |
| Sunday | 90°F | Mostly Sunny | 10 to 20 mph ESE | 3% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 15 to 20 mph E | 23% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph ENE | 22% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 19% |
Forecast source: National Weather Service (api.weather.gov) for Gregory (43.230, -99.421). Updated through the day.
Growing snapshot for Gregory
Last spring frost
May 6
First fall frost
Oct 3
Growing season
149 days
Hardiness zone
5a
More local growing data for Gregory: nearby ZIP 57533 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gregory, Sd (8 mi from Gregory). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.