Marten Lake Weather Forecast
- 40
- 48
Rain Showers Likely
- 35
- 42
Rain Showers Likely
- 38
- 46
Rain
- 38
- 40
Rain Showers
- 38
- 41
Chance Rain
- 39
- 42
Chance Rain
Today 16 Oct Cascades of Southern King County
Sunny until late afternoon then becoming partly sunny. Freezing level near 12000 feet. Afternoon pass Temperatures in the lower 50s. Light wind in the Passes.
Tonight 16 Oct Cascades of Southern King County
Mostly cloudy. A slight chance of Showers in the evening. A chance of Showers after midnight. Snow level near 8000 feet. Light wind in the Passes.
Marten Lake Temperature Statistics
October Temperature
Stampede Pass (23 miles)
Lowest 14 October, 2025
28 °FAverage October
42.6 °FHighest 6 October, 2025
59 °F
Climate (2020–Present)
Stampede Pass (23 miles)
Average Low 2020–2025
36.2 °FAverage 2020–2025
41.5 °FAverage High 2020–2025
48.3 °F