Ideal, SD Weather & Growing Conditions
Tonight
35°F
Mostly Cloudy
Mostly cloudy. Low around 35, with temperatures rising to around 37 overnight. Northwest wind around 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 35°F | Mostly Cloudy | 15 mph NW | 3% |
| Wednesday | 49°F | Mostly Cloudy | 18 mph NW | 11% |
| Wednesday Night | 34°F | Mostly Cloudy | 12 to 15 mph NW | 4% |
| Thursday | 51°F | Mostly Sunny | 8 to 14 mph NW | 0% |
| Thursday Night | 28°F | Partly Cloudy | 6 mph E | 0% |
| Friday | 52°F | Mostly Sunny | 5 to 8 mph S | 0% |
| Friday Night | 31°F | Partly Cloudy | 7 mph S | 0% |
| Saturday | 62°F | Sunny | 7 to 15 mph W | 5% |
| Saturday Night | 34°F | Mostly Clear | 9 mph W | 1% |
| Sunday | 65°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 40°F | Mostly Clear | 13 mph SW | 0% |
| Monday | 62°F | Sunny | 9 to 17 mph NW | 0% |
| Monday Night | 37°F | Partly Cloudy | 7 mph W | 0% |
| Tuesday | 61°F | Mostly Sunny | 7 to 12 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ideal, SD
Last spring frost
May 1
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5a
Explore more for Ideal, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Winner Wiley Fld, Sd (14.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.