Cloud Peak Reservoir Weather Forecast
- 32
- 54
Breezy
- 32
- 54
Mostly Cloudy
- 28
- 47
Rain/Snow Likely
- 30
- 50
Mostly Sunny
- 29
- 50
Mostly Sunny
- 31
- 52
Partly Sunny
Today 26 Sep Bighorn Mountains Southeast
Mostly sunny and breezy. Highs in the mid 60s. Southwest Winds 15 to 20 Mph with Gusts up to 40 Mph.
Tonight 26 Sep Bighorn Mountains Southeast
Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 40s. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.
Cloud Peak Reservoir Temperature Statistics
September Temperature
Buffalo - Johnson County Airport (18.6 miles)
Lowest 15 September, 2026
41.6 °FAverage September
64.4 °FHighest 4 September, 2026
93.7 °F
Climate (2021–2026)
Buffalo - Johnson County Airport (18.6 miles)
Average Low 2021–2026
36.8 °FAverage 2021–2026
48.2 °FAverage High 2021–2026
59.7 °F