Grouse Creek Lake Weather Forecast
- 34
- 43
Increasing Clouds
- 23
- 40
Snow Showers Likely
- 26
- 34
Mostly Sunny
- 29
- 42
Partly Sunny
- 31
- 45
Mostly Sunny
- 34
- 46
Partly Sunny
Today 18 Oct Lost River Range
Sunny. Highs 43 to 53.
Tonight 18 Oct Lost River Range
Partly cloudy. Lows 32 to 39.
Grouse Creek Lake Temperature Statistics
October Temperature
Salmon, Lemhi County Airport (49.1 miles)
Lowest 6 October, 2025
27 °FAverage October
48.7 °FHighest 10 October, 2025
78.1 °F
Climate (2020–Present)
Salmon, Lemhi County Airport (49.1 miles)
Average Low 2020–2025
32.3 °FAverage 2020–2025
45.3 °FAverage High 2020–2025
58.3 °F