Frankfort, SD Weather & Growing Conditions
Today
74°F
Mostly Sunny
Mostly sunny, with a high near 74. Northwest wind 7 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Mostly Sunny | 7 to 10 mph NW | 1% |
| Tonight | 52°F | Mostly Clear | 7 mph SW | 0% |
| Wednesday | 82°F | Sunny | 7 to 13 mph S | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 13 mph SSW | 4% |
| Thursday | 87°F | Sunny | 12 to 17 mph S | 5% |
| Thursday Night | 62°F | Mostly Clear | 14 mph S | 7% |
| Friday | 89°F | Sunny | 12 mph SSW | 3% |
| Friday Night | 62°F | Mostly Clear | 10 mph E | 5% |
| Saturday | 89°F | Sunny | 8 to 17 mph SE | 6% |
| Saturday Night | 63°F | Slight Chance Showers And Thunderstorms | 12 to 16 mph E | 15% |
| Sunday | 87°F | Mostly Sunny | 10 to 15 mph ENE | 6% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 16 mph E | 23% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 16 mph ENE | 23% |
| Monday Night | 62°F | Slight Chance Showers And Thunderstorms | 10 to 16 mph NE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Frankfort, SD
Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
Explore more for Frankfort, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Redfield, Sd (13.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.