Longview Weather Forecast
- 46
- 70
Slight Chance Rain
- 55
- 84
Mostly Sunny
- 49
- 75
Partly Sunny
- 49
- 70
Partly Sunny
- 49
- 73
Partly Sunny
- 52
- 76
Partly Sunny
Today 29 May Cowlitz County Lowlands
Cloudy with rain likely this Morning, then partly sunny this afternoon. Highs around 70. Winds light. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.
Tonight 29 May Cowlitz County Lowlands
Mostly clear. Lows in the mid 40s. Winds light.
Longview Temperature Statistics
May Temperature
Southwest Washington Regional Airport (2.5 miles)
Lowest 4 May, 2025
35.1 °FAverage May
56 °FHighest 1 May, 2025
84 °F
Climate (2020–Present)
Southwest Washington Regional Airport (2.5 miles)
Average Low 2020–2025
45 °FAverage 2020–2025
52.7 °FAverage High 2020–2025
62.1 °F