St Helens Weather Forecast
- 45
- 65
Increasing Clouds
- 44
- 63
Mostly Cloudy
- 45
- 68
Mostly Sunny
- 45
- 71
Mostly Sunny
- 43
- 63
Chance Rain
- 41
- 61
Slight Chance Rain
Today 18 Oct Lower Columbia River
Sunny. Highs in the mid 60s. Winds light.
Tonight 18 Oct Lower Columbia River
Mostly cloudy. Lows in the mid 40s. Winds light in the Evening, becoming light and variable.
St Helens Temperature Statistics
October Temperature
Scappoose Industrial Airpark (6.2 miles)
Lowest 12 October, 2026
33.7 °FAverage October
60.2 °FHighest 4 October, 2026
83.6 °F
Climate (2021–2026)
Scappoose Industrial Airpark (6.2 miles)
Average Low 2021–2026
43.9 °FAverage 2021–2026
53.6 °FAverage High 2021–2026
63.5 °F