St Helens Weather Forecast

    • 35
    • 57

    Increasing Clouds

    • 40
    • 62

    Mostly Cloudy

    • 48
    • 67

    Chance Rain

    • 47
    • 68

    Chance Rain

    • 49
    • 70

    Slight Chance Rain

    • 48
    • 63

    Chance Rain

Today 16 Apr Lower Columbia River

Areas of frost in the morning. Mostly sunny. Highs in the upper 50s. Winds Light, becoming west 5 to 10 Mph in the afternoon.

Tonight 16 Apr Lower Columbia River

Mostly cloudy with a 20 percent chance of rain Showers. Areas of frost. Lows in the mid 30s. Winds light.

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  • Temperature Real-Time

St Helens Temperature Statistics

April Temperature

Scappoose Industrial Airpark (6.2 miles)

  • Lowest 3 April, 2026

    33.7 °F

  • Average April

    54.1 °F

  • Highest 5 April, 2026

    79.6 °F

Climate (2021–Present)

Scappoose Industrial Airpark (6.2 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    63.6 °F
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