Brentford, SD Weather & Growing Conditions
Overnight
36°F
Light Rain Likely
Rain likely. Cloudy. Low around 36, with temperatures rising to around 40 overnight. North northwest wind 16 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 36°F | Light Rain Likely | 16 to 21 mph NNW | 58% |
| Wednesday | 45°F | Light Rain Likely | 18 mph NNW | 67% |
| Wednesday Night | 31°F | Mostly Cloudy | 15 mph NNW | 1% |
| Thursday | 41°F | Mostly Cloudy | 8 to 15 mph N | 0% |
| Thursday Night | 25°F | Mostly Cloudy | 2 to 7 mph ENE | 0% |
| Friday | 42°F | Mostly Sunny | 2 to 7 mph SSE | 0% |
| Friday Night | 26°F | Partly Cloudy | 7 mph S | 0% |
| Saturday | 54°F | Sunny | 7 to 12 mph SW | 1% |
| Saturday Night | 31°F | Mostly Clear | 5 to 8 mph W | 0% |
| Sunday | 54°F | Sunny | 5 to 10 mph SSW | 0% |
| Sunday Night | 34°F | Mostly Clear | 6 to 9 mph SSW | 0% |
| Monday | 59°F | Mostly Sunny | 6 to 10 mph WNW | 0% |
| Monday Night | 32°F | Mostly Clear | 3 to 7 mph NW | 0% |
| Tuesday | 55°F | Mostly Sunny | 3 to 7 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brentford, SD
Last spring frost
May 6
First fall frost
Sep 29
Growing season
144 days
Hardiness zone
4a
Explore more for Brentford, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Conde, Sd (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.