Egan, SD Weather & Growing Conditions
This Afternoon
51°F
Rain Showers
Rain showers. Cloudy. High near 51, with temperatures falling to around 45 in the afternoon. North northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Rain Showers | 20 mph NNW | 99% |
| Tonight | 38°F | Rain Showers | 15 mph NNW | 100% |
| Wednesday | 44°F | Rain Showers | 15 mph NW | 91% |
| Wednesday Night | 35°F | Rain Showers Likely then Mostly Cloudy | 10 to 15 mph NNW | 67% |
| Thursday | 45°F | Partly Sunny | 10 to 15 mph N | 9% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 10 mph NNE | 0% |
| Friday | 45°F | Partly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 54°F | Mostly Sunny | 0 to 10 mph WSW | 2% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WNW | 5% |
| Sunday | 56°F | Sunny | 5 to 10 mph WSW | 3% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 1% |
| Monday | 59°F | Sunny | 5 to 15 mph W | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Egan, SD
Last spring frost
May 5
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
4b
Explore more for Egan, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Flandreau, Sd (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.