Stewart Lake Weather Forecast
- 55
- 79
Increasing Clouds
- 59
- 78
Mostly Cloudy
- 61
- 77
Slight Chance Thunderstorms
- 58
- 73
Rain Showers Likely
- 57
- 71
Rain Showers Likely
- 57
- 74
Chance Thunderstorms
Today 11 Jul Butte/Blackfoot Region
Sunny. Highs in the mid 80s to lower 90s. South Winds to 15 Mph shifting to the west 15 to 20 Mph with Gusts to around 35 Mph in the afternoon.
Tonight 11 Jul Butte/Blackfoot Region
Partly cloudy. Lows in the upper 40s to mid 50s. Southwest Winds 15 to 20 Mph with Gusts to around 30 Mph.
Stewart Lake Temperature Statistics
July Temperature
Butte, Bert Mooney Airport (44.7 miles)
Lowest 2 July, 2026
40.6 °FAverage July
62.7 °FHighest 5 July, 2026
87.7 °F
Climate (2021–2026)
Butte, Bert Mooney Airport (44.7 miles)
Average Low 2021–2026
28.4 °FAverage 2021–2026
42.2 °FAverage High 2021–2026
55.6 °F