Diablo Lake Weather Forecast
- 43
- 51
Rain
- 37
- 47
Rain/Snow
- 33
- 43
Rain/Snow
- 30
- 46
Slight Chance Rain/Snow
- 30
- 46
Partly Sunny
- 32
- 48
Partly Sunny
- 34
- 51
Partly Sunny
Today 26 Oct Foothills and Valleys of the North Cascades
Mostly cloudy. A chance of rain Showers in the morning. A slight chance of rain Showers in the late morning and early afternoon. A chance of rain Showers late in the afternoon. Patchy fog late in the morning. Highs in the 50s. Light wind.
Tonight 26 Oct Foothills and Valleys of the North Cascades
Mostly cloudy with a slight chance of Showers in the Evening, then mostly cloudy with a chance of Showers after midnight. Lows in the upper 30s to mid 40s. Light wind.
Diablo Lake Temperature Statistics
October Temperature
Arlington Municipal Airport (60.9 miles)
Lowest 12 October, 2026
32 °FAverage October
51.6 °FHighest 16 October, 2026
78.1 °F
Climate (2021–2026)
Arlington Municipal Airport (60.9 miles)
Average Low 2021–2026
42.5 °FAverage 2021–2026
50.9 °FAverage High 2021–2026
60 °F