Commonwealth Lake Weather Forecast
- 50
- 77
Partly Sunny
- 49
- 78
Becoming Sunny
- 57
- 79
Partly Sunny
- 49
- 78
Partly Sunny
- 51
- 76
Partly Sunny
- 50
- 68
Rain Showers Likely
- 51
- 67
Rain Showers Likely
Today 15 Jun Tualatin Valley
Sunny. Highs in the upper 70s. Winds light.
Tonight 15 Jun Tualatin Valley
Mostly clear this Evening, then becoming partly cloudy. Lows in the upper 40s. Winds light.
Commonwealth Lake Temperature Statistics
June Temperature
Portland-Hillsboro Airport (7.5 miles)
Lowest 3 June, 2025
42.7 °FAverage June
64.4 °FHighest 8 June, 2025
96.7 °F
Climate (2020–Present)
Portland-Hillsboro Airport (7.5 miles)
Average Low 2020–2025
43.1 °FAverage 2020–2025
53.4 °FAverage High 2020–2025
64.2 °F