St Helens Weather Forecast

    • 54
    • 79

    Mostly Sunny

    • 56
    • 81

    Increasing Clouds

    • 58
    • 84

    Partly Sunny

    • 63
    • 89

    Mostly Cloudy

    • 63
    • 92

    Partly Sunny

    • 62
    • 91

    Partly Sunny

    • 59
    • 88

    Mostly Sunny

Today 17 Jul Lower Columbia River

Mostly sunny. Highs in the lower 80s. Northwest wind 5 to 10 Mph.

Tonight 17 Jul Lower Columbia River

Mostly clear this Evening, then becoming partly cloudy. 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 2 July, 2026

    44.7 °F

  • Average July

    67.4 °F

  • Highest 6 July, 2026

    88.6 °F

Climate (2021–2026)

Scappoose Industrial Airpark (6.2 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.5 °F
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