Alta Lake State Park Weather Forecast
- 42
- 62
Increasing Clouds
- 38
- 62
Mostly Sunny
- 43
- 56
Rain
- 40
- 56
Chance Rain
- 41
- 58
Partly Sunny
- 40
- 57
Partly Sunny
Today 16 Oct Okanogan Valley
Sunny. Highs in the mid 50s to lower 60s.
Tonight 16 Oct Okanogan Valley
Mostly cloudy. Lows in the mid 30s to lower 40s.
Alta Lake State Park Temperature Statistics
October Temperature
Omak Airport (35.4 miles)
Lowest 14 October, 2025
35.1 °FAverage October
54.3 °FHighest 7 October, 2025
73 °F
Climate (2020–Present)
Omak Airport (35.4 miles)
Average Low 2020–2025
40.6 °FAverage 2020–2025
51.7 °FAverage High 2020–2025
62.7 °F