Rattlesnake Mountain Weather Forecast
- 40
- 56
Mostly Sunny
- 38
- 54
Becoming Sunny
- 42
- 55
Mostly Sunny
- 48
- 66
Partly Sunny
- 47
- 64
Mostly Sunny
- 49
- 70
Partly Sunny
- 44
- 63
Partly Sunny
Today 7 May Boise Mountains
Sunny. Highs 62 to 77. Breezy.
Tonight 7 May Boise Mountains
Mostly clear. Lows 32 to 47.
Rattlesnake Mountain Temperature Statistics
May Temperature
Boise Air Terminal (32.9 miles)
Lowest 1 May, 2026
48.7 °FAverage May
64.8 °FHighest 3 May, 2026
81.6 °F
Climate (2021–Present)
Boise Air Terminal (32.9 miles)
Average Low 2021–2026
44.2 °FAverage 2021–2026
55 °FAverage High 2021–2026
66.2 °F