St. Francis, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Francis, a town in Todd County, South Dakota.
Overnight
49°F
Areas Of Smoke
Areas of smoke and a slight chance of rain showers. Partly cloudy, with a low around 49. North wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
7-day forecast for St. Francis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Areas Of Smoke | 15 mph N | 20% |
| Tuesday | 67°F | Areas Of Smoke | 6 to 14 mph N | 20% |
| Tuesday Night | 51°F | Partly Cloudy | 3 to 7 mph SE | 6% |
| Wednesday | 78°F | Mostly Sunny | 7 to 10 mph S | 6% |
| Wednesday Night | 57°F | Mostly Clear | 10 to 21 mph S | 2% |
| Thursday | 88°F | Sunny | 18 mph S | 5% |
| Thursday Night | 62°F | Mostly Clear | 15 to 18 mph S | 7% |
| Friday | 92°F | Sunny | 13 to 16 mph N | 3% |
| Friday Night | 64°F | Mostly Clear | 17 mph SE | 3% |
| Saturday | 95°F | Sunny | 17 to 25 mph W | 5% |
| Saturday Night | 63°F | Mostly Clear | 12 to 23 mph SE | 7% |
| Sunday | 92°F | Mostly Sunny | 12 to 23 mph SE | 6% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 15 to 23 mph SE | 28% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms | 15 to 21 mph E | 16% |
Forecast source: National Weather Service (api.weather.gov) for St. Francis (43.143, -100.903). Updated through the day.
Growing snapshot for St. Francis
Last spring frost
May 9
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
5a
More local growing data for St. Francis: nearby ZIP 57570 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Antelope
Mission
Okreek
Parmelee
Rosebud
Sicangu Village
Soldier Creek
Spring Creek
Two Strike
White Horse
Climate data from the nearest NOAA station, Mission, Sd (12.1 mi from St. Francis). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.