Interior, SD Weather & Growing Conditions
Today
72°F
Areas Of Smoke
Areas of smoke and a slight chance of rain showers before 1pm. Mostly sunny, with a high near 72. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Areas Of Smoke | 3 to 7 mph NW | 17% |
| Tonight | 55°F | Mostly Clear | 3 to 10 mph S | 12% |
| Wednesday | 84°F | Sunny | 9 mph SW | 12% |
| Wednesday Night | 61°F | Mostly Clear | 6 to 21 mph S | 4% |
| Thursday | 93°F | Sunny | 8 to 15 mph W | 2% |
| Thursday Night | 65°F | Mostly Clear | 8 to 14 mph SE | 2% |
| Friday | 96°F | Sunny | 13 mph NW | 1% |
| Friday Night | 67°F | Clear | 13 to 16 mph SE | 3% |
| Saturday | 98°F | Sunny | 14 to 17 mph NW | 3% |
| Saturday Night | 65°F | Mostly Clear | 9 to 16 mph E | 2% |
| Sunday | 96°F | Sunny | 9 to 22 mph SE | 10% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 12 to 24 mph E | 27% |
| Monday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 to 20 mph E | 15% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 13 to 21 mph E | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Interior, SD
Last spring frost
May 5
First fall frost
Oct 7
Growing season
152 days
Hardiness zone
5a
Explore more for Interior, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Interior 3 Ne, Sd (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.