Frankfort, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Frankfort, a city in Spink County, South Dakota.
This Afternoon
49°F
Chance Light Rain
A chance of rain before 5pm, then a slight chance of drizzle. Cloudy, with a high near 49. North northwest wind 20 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.
7-day forecast for Frankfort
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Chance Light Rain | 20 to 30 mph NNW | 30% |
| Tonight | 34°F | Light Rain Likely | 15 to 18 mph NNW | 65% |
| Wednesday | 46°F | Light Rain | 20 mph NNW | 76% |
| Wednesday Night | 30°F | Mostly Cloudy | 13 to 16 mph NNW | 14% |
| Thursday | 44°F | Partly Sunny | 9 to 15 mph N | 1% |
| Thursday Night | 25°F | Mostly Cloudy | 2 to 8 mph ENE | 0% |
| Friday | 45°F | Partly Sunny | 2 to 6 mph SSE | 0% |
| Friday Night | 25°F | Partly Cloudy | 6 mph S | 0% |
| Saturday | 57°F | Mostly Sunny | 6 to 12 mph WSW | 3% |
| Saturday Night | 30°F | Mostly Clear | 8 mph W | 2% |
| Sunday | 57°F | Sunny | 6 to 10 mph SSW | 1% |
| Sunday Night | 34°F | Mostly Clear | 10 mph S | 0% |
| Monday | 59°F | Sunny | 8 to 15 mph WNW | 0% |
| Monday Night | 32°F | Mostly Clear | 8 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Frankfort (44.878, -98.309). Updated through the day.
Growing snapshot for Frankfort
Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
More local growing data for Frankfort: nearby ZIP 57440 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
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Glendale Colony
Hillside Colony
Mellette
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Redfield
Spink Colony
Tulare
Turton
Verdon
Climate data from the nearest NOAA station, Redfield, Sd (13.2 mi from Frankfort). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.