Box Elder, SD Weather & Growing Conditions
Tonight
58°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between midnight and 2am, then patchy fog and a slight chance of showers and thunderstorms between 2am and 3am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind around 6 mph. Chance of precipitation is 50%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 6 mph E | 46% |
| Saturday | 66°F | Rain Showers Likely | 5 to 10 mph E | 60% |
| Saturday Night | 54°F | Showers And Thunderstorms Likely | 10 mph E | 74% |
| Sunday | 59°F | Rain Showers | 10 mph E | 99% |
| Sunday Night | 51°F | Rain Showers | 7 to 12 mph E | 89% |
| Monday | 63°F | Chance Rain Showers | 7 to 13 mph E | 32% |
| Monday Night | 51°F | Mostly Cloudy | 15 mph SE | 10% |
| Tuesday | 73°F | Mostly Sunny | 16 to 22 mph SE | 6% |
| Tuesday Night | 55°F | Partly Cloudy | 14 to 18 mph S | 13% |
| Wednesday | 78°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 to 13 mph S | 18% |
| Wednesday Night | 55°F | Mostly Clear | 8 mph SW | 14% |
| Thursday | 79°F | Sunny | 5 to 10 mph NE | 6% |
| Thursday Night | 56°F | Partly Cloudy | 10 mph SE | 5% |
| Friday | 80°F | Mostly Sunny | 9 to 18 mph SE | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Box Elder, SD
Last spring frost
May 3
First fall frost
Oct 8
Growing season
157 days
Hardiness zone
5b
Explore more for Box Elder, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Rapid City Wfo, Sd (8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.