Brandon, SD Weather & Growing Conditions
Tonight
39°F
Rain Showers
Rain showers. Cloudy. Low around 39, with temperatures rising to around 42 overnight. North northwest wind around 15 mph, with gusts as high as 30 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 |
|---|---|---|---|---|
| Tonight | 39°F | Rain Showers | 15 mph NNW | 98% |
| Wednesday | 46°F | Rain Showers | 15 mph NW | 89% |
| Wednesday Night | 37°F | Rain Showers Likely | 10 to 15 mph NW | 60% |
| Thursday | 47°F | Mostly Cloudy | 10 to 15 mph N | 10% |
| Thursday Night | 32°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 47°F | Partly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 55°F | Mostly Sunny | 0 to 10 mph WSW | 2% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WNW | 4% |
| Sunday | 58°F | Sunny | 5 to 10 mph WSW | 3% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 1% |
| Monday | 60°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 57°F | Mostly Sunny | 0 to 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brandon, SD
Last spring frost
May 1
First fall frost
Oct 6
Growing season
157 days
Hardiness zone
5a
Explore more for Brandon, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Sioux Falls, Sd (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.