Rainbow Lake Weather Forecast
- 32
- 41
Increasing Clouds
- 30
- 45
Mostly Sunny
- 27
- 43
Mostly Sunny
- 28
- 39
Partly Sunny
- 26
- 39
Snow Likely
- 18
- 29
Snow Likely
Today 4 Feb Butte/Blackfoot Region
Partly cloudy. Highs in the 50s. Southwest Winds to 15 Mph.
Tonight 4 Feb Butte/Blackfoot Region
Mostly clear. Lows in the upper 20s to mid 30s.
Rainbow Lake Temperature Statistics
February Temperature
Butte, Bert Mooney Airport (42.9 miles)
Lowest 1 February, 2026
21 °FAverage February
34.5 °FHighest 1 February, 2026
51.1 °F
Climate (2021–Present)
Butte, Bert Mooney Airport (42.9 miles)
Average Low 2021–2026
28.2 °FAverage 2021–2026
42 °FAverage High 2021–2026
55.3 °F