Sulphur Mountain Lake Weather Forecast
- 27
- 38
Rain/Snow
- 25
- 30
Snow
- 24
- 27
Snow
- 21
- 25
Snow
- 26
- 29
Snow Likely
- 28
- 32
Snow Likely
Today 24 Oct Cascades of Snohomish and Northern King Counties
Rain likely in the morning. A slight chance of snow through the day. Rain in the afternoon. Snow level near 7000 feet. Rainfall Amounts one to three Inches possible. No snow accumulation. Afternoon pass Temperatures in the mid 40s. Light wind.
Tonight 24 Oct Cascades of Snohomish and Northern King Counties
Rain in the evening. A slight chance of snow. A chance of rain after midnight. Snow level near 5500 feet decreasing to 4500 feet after midnight. Rainfall Amounts a quarter to a half inch possible. No snow accumulation. Lows in the lower 30s. Light wind. Gusts to 20 Mph.
Sulphur Mountain Lake Temperature Statistics
October Temperature
Arlington Municipal Airport (49.7 miles)
Lowest 14 October, 2025
28.9 °FAverage October
51.2 °FHighest 7 October, 2025
73.9 °F
Climate (2020–Present)
Arlington Municipal Airport (49.7 miles)
Average Low 2020–2025
42.3 °FAverage 2020–2025
50.6 °FAverage High 2020–2025
59.7 °F