Buffalo, SD Weather & Growing Conditions
Tonight
54°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 3am. Mostly cloudy. Low around 54, with temperatures rising to around 56 overnight. East wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 24% |
| Saturday | 65°F | Rain Showers Likely | 6 to 16 mph E | 68% |
| Saturday Night | 51°F | Rain Showers Likely | 13 to 16 mph E | 74% |
| Sunday | 60°F | Rain Showers | 16 mph E | 93% |
| Sunday Night | 49°F | Rain Showers | 9 to 16 mph E | 76% |
| Monday | 64°F | Mostly Cloudy | 9 to 20 mph SE | 12% |
| Monday Night | 48°F | Mostly Cloudy | 16 to 20 mph SE | 2% |
| Tuesday | 72°F | Partly Sunny | 16 to 23 mph SE | 2% |
| Tuesday Night | 52°F | Partly Cloudy | 7 to 22 mph SE | 7% |
| Wednesday | 78°F | Mostly Sunny then Slight Chance Rain Showers | 7 to 12 mph SE | 15% |
| Wednesday Night | 53°F | Mostly Clear | 5 to 12 mph SE | 14% |
| Thursday | 79°F | Sunny | 5 to 13 mph SE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 9 to 13 mph SE | 4% |
| Friday | 79°F | Mostly Sunny | 9 to 20 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Buffalo, SD
Last spring frost
May 10
First fall frost
Oct 1
Growing season
141 days
Hardiness zone
4b
Explore more for Buffalo, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Buffalo Asos, Sd (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.