Clear Lake Weather Forecast
- 60
- 79
Rain Showers
- 48
- 71
Chance Rain Showers
- 51
- 75
Mostly Sunny
- 53
- 85
Mostly Sunny
- 50
- 77
Slight Chance Rain Showers
- 48
- 74
Mostly Sunny
- 51
- 77
Mostly Sunny
Today 13 Sep East Central Willamette Valley
Mostly sunny. Highs in the lower 80s. Winds light.
Tonight 13 Sep East Central Willamette Valley
Mostly cloudy. Showers with a slight chance of Thunderstorms after midnight. Lows in the upper 50s. Southwest wind 5 to 10 Mph. Chance of rain 80 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.
Clear Lake Temperature Statistics
September Temperature
Salem - McNary Field (8.7 miles)
Lowest 2 September, 2025
57.9 °FAverage September
68.3 °FHighest 4 September, 2025
91 °F
Climate (2020–Present)
Salem - McNary Field (8.7 miles)
Average Low 2020–2025
45.8 °FAverage 2020–2025
55.3 °FAverage High 2020–2025
65.6 °F