Columbia River - Saint Helens Weather Forecast

    • 56
    • 82

    Becoming Sunny

    • 55
    • 79

    Partly Sunny

    • 56
    • 78

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

    • 57
    • 78

    Partly Sunny

    • 60
    • 84

    Mostly Sunny

Today 8 Aug Lower Columbia River

Partly sunny this Morning, then clearing. Highs in the mid 80s. Northwest wind 5 to 10 Mph.

Tonight 8 Aug Lower Columbia River

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Northwest wind 5 to 10 Mph.

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Columbia River - Saint Helens Temperature Statistics

August Temperature

Scappoose Industrial Airpark (6.8 miles)

  • Lowest 2 August, 2026

    48.7 °F

  • Average August

    69.8 °F

  • Highest 6 August, 2026

    93.9 °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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