Rockham, SD Weather & Growing Conditions
Overnight
57°F
Patchy Fog
Patchy fog and a slight chance of drizzle after 2am. Cloudy, with a low around 57. North northeast wind 6 to 9 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Patchy Fog | 6 to 9 mph NNE | 16% |
| Saturday | 66°F | Patchy Fog then Cloudy | 9 to 13 mph NNE | 21% |
| Saturday Night | 51°F | Cloudy then Slight Chance Rain Showers | 8 to 13 mph NNE | 24% |
| Sunday | 65°F | Chance Rain Showers | 14 mph NE | 39% |
| Sunday Night | 51°F | Rain Showers Likely | 8 to 12 mph ENE | 73% |
| Monday | 63°F | Rain Showers Likely | 10 mph E | 73% |
| Monday Night | 47°F | Mostly Cloudy | 6 to 9 mph ESE | 13% |
| Tuesday | 66°F | Partly Sunny | 7 to 17 mph SE | 4% |
| Tuesday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph SE | 17% |
| Wednesday | 70°F | Slight Chance Rain Showers | 16 to 20 mph SSE | 23% |
| Wednesday Night | 53°F | Chance Rain Showers | 12 to 16 mph SE | 28% |
| Thursday | 71°F | Chance Rain Showers then Partly Sunny | 12 mph SSE | 28% |
| Thursday Night | 54°F | Partly Cloudy | 10 mph SE | 14% |
| Friday | 72°F | Partly Sunny | 9 to 16 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rockham, SD
Last spring frost
May 10
First fall frost
Sep 28
Growing season
139 days
Hardiness zone
4b
Explore more for Rockham, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Faulkton 1 Nw, Sd (15.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.