Egan, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Egan, a city in Moody County, South Dakota.
Today
70°F
Patchy Smoke then Partly Sunny
Patchy smoke before 8am. Partly sunny, with a high near 70. Northwest wind 5 to 10 mph.
7-day forecast for Egan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Patchy Smoke then Partly Sunny | 5 to 10 mph NW | 9% |
| Tonight | 51°F | Partly Cloudy | 0 to 5 mph WNW | 3% |
| Wednesday | 76°F | Sunny | 0 to 5 mph SSW | 0% |
| Wednesday Night | 54°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Thursday | 81°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 62°F | Mostly Clear | 10 to 15 mph S | 4% |
| Friday | 85°F | Sunny | 10 to 15 mph SSW | 11% |
| Friday Night | 63°F | Mostly Clear | 5 to 10 mph S | 12% |
| Saturday | 87°F | Sunny | 5 to 15 mph S | 5% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 10 to 20 mph ESE | 26% |
| Sunday | 84°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph ESE | 16% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 24% |
| Monday | 83°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph ENE | 24% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 17% |
Forecast source: National Weather Service (api.weather.gov) for Egan (44.000, -96.649). Updated through the day.
Growing snapshot for Egan
Last spring frost
May 5
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
4b
More local growing data for Egan: nearby ZIP 57024 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Flandreau, Sd (6.4 mi from Egan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.