Harney Peak Weather Forecast
- 65
- 83
Mostly Sunny
- 63
- 85
Mostly Sunny
- 61
- 80
Chance Thunderstorms
- 58
- 78
Chance Rain Showers
- 52
- 74
Mostly Sunny
- 53
- 73
Partly Sunny
Today 4 Sep Central Black Hills
Sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.
Tonight 4 Sep Central Black Hills
Mostly clear. Lows in the lower 60s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.
Harney Peak Temperature Statistics
September Temperature
Custer, Custer County Airport (9.9 miles)
Lowest 2 September, 2026
51.1 °FAverage September
65.6 °FHighest 2 September, 2026
82 °F
Climate (2021–2026)
Custer, Custer County Airport (9.9 miles)
Average Low 2021–2026
33.6 °FAverage 2021–2026
45.4 °FAverage High 2021–2026
56.9 °F