Upper Sioux Agency State Park Weather Forecast
- 36
- 68
Rain Showers
- 37
- 56
Mostly Sunny
- 42
- 56
Mostly Cloudy
- 49
- 60
Chance Rain Showers
- 52
- 64
Mostly Cloudy
- 51
- 60
Rain Showers Likely
- 45
- 59
Chance Rain Showers
Today 28 Oct Yellow Medicine
Warmer. Rain Showers with Thunderstorms likely early in the Afternoon, then Thunderstorms likely late in the afternoon. Some Thunderstorms may be severe early in the afternoon. Near steady temperature in the lower 60s. Southwest Winds 5 to 15 Mph. Chance of precipitation 90 percent.
Tonight 28 Oct Yellow Medicine
Colder, clear. A 20 percent chance of Thunderstorms in the evening. Some Thunderstorms may be severe. Lows in the mid 30s. West Winds 5 to 10 Mph.
Upper Sioux Agency State Park Temperature Statistics
October Temperature
Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)
Lowest 17 October, 2026
30.7 °FAverage October
56.2 °FHighest 10 October, 2026
92.1 °F
Climate (2021–2026)
Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)
Average Low 2021–2026
37.5 °FAverage 2021–2026
48 °FAverage High 2021–2026
58.4 °F