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.
This Afternoon
75°F
Mostly Cloudy
Mostly cloudy, with a high near 75. North wind around 7 mph, with gusts as high as 16 mph.
7-day forecast for St. Francis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Cloudy | 7 mph N | 0% |
| Tonight | 55°F | Patchy Fog | 7 mph N | 7% |
| Saturday | 65°F | Patchy Fog then Slight Chance Rain Showers | 9 mph N | 16% |
| Saturday Night | 52°F | Rain Showers Likely | 10 mph NE | 74% |
| Sunday | 59°F | Rain Showers | 10 mph E | 91% |
| Sunday Night | 50°F | Showers And Thunderstorms | 10 to 14 mph E | 94% |
| Monday | 60°F | Rain Showers | 13 mph NE | 79% |
| Monday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 14 mph E | 23% |
| Tuesday | 67°F | Mostly Cloudy | 14 to 25 mph SE | 13% |
| Tuesday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 21 to 24 mph S | 15% |
| Wednesday | 72°F | Slight Chance Rain Showers | 25 to 29 mph S | 19% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 16 to 23 mph S | 26% |
| Thursday | 74°F | Slight Chance Rain Showers then Mostly Sunny | 10 to 16 mph S | 18% |
| Thursday Night | 55°F | Partly Cloudy | 10 to 15 mph SE | 10% |
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 Sep 19, 2026.