Frankfort, SD Weather & Growing Conditions
Tonight
56°F
Areas Of Drizzle
Areas of drizzle and patchy fog. Cloudy, with a low around 56. Northeast wind 7 to 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Areas Of Drizzle | 7 to 12 mph NE | 26% |
| Saturday | 68°F | Patchy Fog | 9 to 13 mph NNE | 4% |
| Saturday Night | 52°F | Mostly Cloudy | 7 to 12 mph NE | 11% |
| Sunday | 66°F | Mostly Cloudy then Chance Rain Showers | 9 to 14 mph ENE | 32% |
| Sunday Night | 50°F | Rain Showers Likely | 7 to 12 mph ENE | 58% |
| Monday | 63°F | Rain Showers Likely | 9 mph E | 58% |
| Monday Night | 46°F | Mostly Cloudy | 8 mph ESE | 9% |
| Tuesday | 66°F | Partly Sunny | 7 to 14 mph SE | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 10 to 14 mph SSE | 11% |
| Wednesday | 69°F | Slight Chance Rain Showers | 14 to 18 mph SSE | 17% |
| Wednesday Night | 53°F | Chance Rain Showers | 14 mph SSE | 31% |
| Thursday | 71°F | Chance Rain Showers then Partly Sunny | 9 to 13 mph SSE | 31% |
| Thursday Night | 53°F | Partly Cloudy | 9 mph SE | 14% |
| Friday | 72°F | Mostly Sunny | 10 to 16 mph SE | 14% |
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 Sep 19, 2026.