St Helens Weather Forecast

    • 57
    • 96

    Mostly Sunny

    • 59
    • 89

    Mostly Sunny

    • 56
    • 85

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 57
    • 76

    Mostly Cloudy

    • 57
    • 77

    Partly Sunny

    • 58
    • 82

    Mostly Sunny

Today 16 Jul Lower Columbia River

Sunny. Highs in the upper 90s. North wind 5 to 10 Mph.

Tonight 16 Jul Lower Columbia River

Mostly clear. Lows in the mid 50s. Northwest wind 5 to 10 Mph.

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  • Temperature Real-Time

St Helens Temperature Statistics

July Temperature

Scappoose Industrial Airpark (6.2 miles)

  • Lowest 5 July, 2025

    49.6 °F

  • Average July

    70.5 °F

  • Highest 13 July, 2025

    95 °F

Climate (2020–Present)

Scappoose Industrial Airpark (6.2 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    63.3 °F
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