Downstream Recreation Area(South) Weather Forecast
- 59
- 82
Rain Showers Likely
- 57
- 69
Rain Showers
- 54
- 66
Rain Showers Likely
- 52
- 69
Slight Chance Thunderstorms
- 54
- 76
Partly Sunny
- 55
- 79
Partly Sunny
Today 16 Sep Stanley
Partly sunny with a 20 percent chance of Thunderstorms. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.
Tonight 16 Sep Stanley
Mostly cloudy with a 50 percent chance of Thunderstorms. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.
Downstream Recreation Area(South) Temperature Statistics
September Temperature
Pierre, Pierre Regional Airport (6.2 miles)
Lowest 6 September, 2025
39 °FAverage September
66 °FHighest 12 September, 2025
90 °F
Climate (2020–Present)
Pierre, Pierre Regional Airport (6.2 miles)
Average Low 2020–2025
36.8 °FAverage 2020–2025
48.7 °FAverage High 2020–2025
61.2 °F