Lake Vermillion Recreation Area Weather Forecast
- 59
- 62
Rain Showers
- 59
- 66
Rain Showers
- 58
- 71
Mostly Cloudy
- 59
- 70
Rain Showers Likely
- 53
- 66
Chance Rain Showers
- 53
- 65
Slight Chance Rain Showers
Today 25 Sep McCook
Patchy fog early. Cloudy with Areas of drizzle. A chance of Showers. Near steady temperature in the lower 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.
Tonight 25 Sep McCook
Showers. Near steady temperature in the upper 50s. Southeast Winds around 15 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.
Lake Vermillion Recreation Area Temperature Statistics
September Temperature
Sioux Falls, Foss Field (21.1 miles)
Lowest 16 September, 2026
46.7 °FAverage September
69 °FHighest 4 September, 2026
99.6 °F
Climate (2021–2026)
Sioux Falls, Foss Field (21.1 miles)
Average Low 2021–2026
38.7 °FAverage 2021–2026
50 °FAverage High 2021–2026
61 °F