Wind Cave National Park Weather Forecast
- 57
- 69
Rain Showers
- 57
- 76
Rain Showers Likely
- 53
- 68
Rain Showers
- 50
- 62
Rain Showers
- 50
- 67
Chance Rain Showers
- 54
- 73
Chance Rain Showers
Today 17 Sep Southern Black Hills
Showers with a chance of Thunderstorms. Highs in the upper 60s. East Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.
Tonight 17 Sep Southern Black Hills
Showers with a chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Patchy fog. Lows in the mid 50s. Northeast Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming northwest after midnight.
Wind Cave National Park Temperature Statistics
September Temperature
Custer, Custer County Airport (12.4 miles)
Lowest 15 September, 2026
41 °FAverage September
63.4 °FHighest 4 September, 2026
86.6 °F
Climate (2021–2026)
Custer, Custer County Airport (12.4 miles)
Average Low 2021–2026
33.6 °FAverage 2021–2026
45.4 °FAverage High 2021–2026
57 °F