Stewart Lake Weather Forecast
- 33
- 38
Increasing Clouds
- 30
- 40
Mostly Cloudy
- 27
- 43
Mostly Sunny
- 20
- 35
Partly Sunny
- 22
- 31
Partly Sunny
- 24
- 36
Mostly Sunny
Today 12 Jan Butte/Blackfoot Region
Partly cloudy. Highs in the 40s. Windy with southwest Winds 20 to 30 Mph. Gusts up to 35 Mph in the afternoon.
Tonight 12 Jan Butte/Blackfoot Region
Partly cloudy in the evening then becoming mostly cloudy. Lows in the 30s. Southwest Winds 15 to 25 Mph with Gusts to around 35 Mph.
Stewart Lake Temperature Statistics
January Temperature
Butte, Bert Mooney Airport (44.7 miles)
Lowest 8 January, 2026
12 °FAverage January
31.6 °FHighest 3 January, 2026
48 °F
Climate (2021–Present)
Butte, Bert Mooney Airport (44.7 miles)
Average Low 2021–2026
28.1 °FAverage 2021–2026
42 °FAverage High 2021–2026
55.2 °F