Gregory, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gregory, a city in Gregory County, South Dakota.
Tonight
58°F
Patchy Fog
Patchy fog after 11pm. Cloudy, with a low around 58. North wind 5 to 10 mph.
7-day forecast for Gregory
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Patchy Fog | 5 to 10 mph N | 10% |
| Saturday | 66°F | Patchy Fog then Cloudy | 10 mph N | 16% |
| Saturday Night | 54°F | Chance Rain Showers | 10 mph NE | 54% |
| Sunday | 60°F | Rain Showers | 10 to 15 mph ENE | 80% |
| Sunday Night | 51°F | Rain Showers | 10 mph ENE | 89% |
| Monday | 59°F | Rain Showers | 10 mph ENE | 89% |
| Monday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph ESE | 18% |
| Tuesday | 65°F | Mostly Cloudy | 10 to 15 mph SE | 14% |
| Tuesday Night | 51°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph SE | 16% |
| Wednesday | 70°F | Chance Rain Showers | 20 mph SSE | 27% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 15 mph SSE | 39% |
| Thursday | 71°F | Chance Rain Showers | 10 to 15 mph SSE | 39% |
| Thursday Night | 55°F | Partly Cloudy | 10 to 15 mph SE | 12% |
| Friday | 72°F | Partly Sunny | 15 mph SE | 12% |
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 Sep 19, 2026.