Cowlitz River - Longview Weather Forecast
- 56
- 74
Decreasing Clouds
- 63
- 91
Mostly Sunny
- 59
- 94
Mostly Sunny
- 57
- 87
Mostly Sunny
- 58
- 83
Mostly Sunny
- 58
- 79
Partly Sunny
Today 14 Jul Cowlitz County Lowlands
Mostly sunny. Highs in the upper 70s. West wind 5 to 10 Mph, rising to 10 to 15 Mph this afternoon.
Tonight 14 Jul Cowlitz County Lowlands
Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Northwest wind 5 to 10 Mph.
Cowlitz River - Longview Temperature Statistics
July Temperature
Southwest Washington Regional Airport (2.5 miles)
Lowest 5 July, 2025
48 °FAverage July
66.3 °FHighest 7 July, 2025
90 °F
Climate (2020–Present)
Southwest Washington Regional Airport (2.5 miles)
Average Low 2020–2025
45 °FAverage 2020–2025
52.8 °FAverage High 2020–2025
62.3 °F