Columbia River - Trojan Nuclear Plant Weather Forecast
- 54
- 81
Mostly Sunny
- 56
- 85
Mostly Sunny
- 58
- 88
Mostly Sunny
- 59
- 87
Partly Sunny
- 59
- 80
Mostly Cloudy
- 56
- 80
Partly Sunny
- 55
- 80
Partly Sunny
Today 27 Jul Lower Columbia River
Mostly sunny. Highs in the lower 80s. Light and variable Winds, becoming light this afternoon.
Tonight 27 Jul Lower Columbia River
Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Winds light.
Columbia River - Trojan Nuclear Plant Temperature Statistics
July Temperature
Southwest Washington Regional Airport (5 miles)
Lowest 5 July, 2025
48 °FAverage July
66.8 °FHighest 13 July, 2025
95 °F
Climate (2020–Present)
Southwest Washington Regional Airport (5 miles)
Average Low 2020–2025
45 °FAverage 2020–2025
52.8 °FAverage High 2020–2025
62.3 °F