Mellette, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mellette, a city in Spink County, South Dakota.
Tonight
36°F
Chance Light Rain
A chance of rain. Cloudy. Low around 36, with temperatures rising to around 39 overnight. North northwest wind 14 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Mellette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Chance Light Rain | 14 to 22 mph NNW | 50% |
| Wednesday | 45°F | Light Rain Likely | 18 mph NNW | 63% |
| Wednesday Night | 30°F | Mostly Cloudy | 12 to 15 mph NNW | 10% |
| Thursday | 42°F | Partly Sunny | 8 to 15 mph N | 0% |
| Thursday Night | 24°F | Mostly Cloudy | 2 to 7 mph ENE | 0% |
| Friday | 44°F | Partly Sunny | 2 to 6 mph S | 0% |
| Friday Night | 25°F | Partly Cloudy | 6 mph SSW | 0% |
| Saturday | 57°F | Mostly Sunny | 6 to 12 mph WSW | 3% |
| Saturday Night | 30°F | Mostly Clear | 6 to 9 mph W | 2% |
| Sunday | 56°F | Sunny | 6 to 10 mph SSW | 1% |
| Sunday Night | 34°F | Mostly Clear | 9 mph SSW | 0% |
| Monday | 59°F | Sunny | 8 to 15 mph WNW | 0% |
| Monday Night | 32°F | Mostly Clear | 5 to 8 mph WNW | 0% |
| Tuesday | 54°F | Mostly Sunny | 5 to 8 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Mellette (45.154, -98.498). Updated through the day.
Growing snapshot for Mellette
Last spring frost
May 11
First fall frost
Sep 27
Growing season
137 days
Hardiness zone
4a
More local growing data for Mellette: nearby ZIP 57461 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Ashton
Brentford
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Chelsea
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Doland
Frankfort
Glendale Colony
Hillside Colony
Northville
Redfield
Spink Colony
Tulare
Turton
Verdon
Climate data from the nearest NOAA station, Mellette 4 W, Sd (6.9 mi from Mellette). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.