Interior, SD Weather & Growing Conditions
This Afternoon
50°F
Partly Sunny
Partly sunny. High near 50, with temperatures falling to around 48 in the afternoon. Northwest wind 12 to 16 mph, with gusts as high as 28 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Partly Sunny | 12 to 16 mph NW | 0% |
| Tonight | 33°F | Mostly Cloudy | 10 mph NW | 0% |
| Thursday | 50°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Thursday Night | 30°F | Partly Cloudy | 5 to 10 mph SE | 0% |
| Friday | 54°F | Partly Sunny | 8 mph W | 0% |
| Friday Night | 36°F | Mostly Clear | 5 to 13 mph W | 0% |
| Saturday | 61°F | Sunny | 8 to 15 mph W | 0% |
| Saturday Night | 37°F | Mostly Clear | 8 mph SW | 0% |
| Sunday | 67°F | Sunny | 9 to 18 mph SW | 0% |
| Sunday Night | 43°F | Mostly Clear | 13 to 20 mph SW | 0% |
| Monday | 61°F | Sunny | 6 to 13 mph NW | 0% |
| Monday Night | 39°F | Partly Cloudy | 5 to 8 mph E | 0% |
| Tuesday | 59°F | Mostly Sunny | 7 to 12 mph S | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 6 to 9 mph S | 0% |
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 Nov 4, 2026.