Columbia River - Saint Helens Weather Forecast

    • 51
    • 68

    Partly Sunny

    • 55
    • 68

    Rain

    • 49
    • 60

    Rain Showers

    • 49
    • 63

    Mostly Cloudy

    • 49
    • 64

    Partly Sunny

    • 51
    • 64

    Partly Sunny

    • 52
    • 65

    Chance Rain

Today 23 Sep Lower Columbia River

Partly sunny. Highs around 70. Winds light.

Tonight 23 Sep Lower Columbia River

Partly cloudy. Lows in the upper 40s. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Columbia River - Saint Helens Temperature Statistics

September Temperature

Scappoose Industrial Airpark (6.8 miles)

  • Lowest 18 September, 2026

    45.6 °F

  • Average September

    62.3 °F

  • Highest 9 September, 2026

    87.7 °F

Climate (2021–2026)

Scappoose Industrial Airpark (6.8 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.4 °F
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