Etna Weather Forecast

    • 49
    • 77

    Mostly Sunny

    • 50
    • 80

    Sunny

    • 55
    • 77

    Rain Likely

    • 48
    • 70

    Chance Rain

    • 52
    • 77

    Mostly Sunny

    • 56
    • 81

    Chance Rain

Today 18 Sep South Washington Cascade Foothills

Sunny. Highs in the mid 70s. Northwest wind 5 to 10 Mph.

Tonight 18 Sep South Washington Cascade Foothills

Mostly clear. Lows in the upper 40s. North wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Etna Temperature Statistics

September Temperature

Scappoose Industrial Airpark (16.8 miles)

  • Lowest 15 September, 2025

    45 °F

  • Average September

    66.7 °F

  • Highest 16 September, 2025

    91 °F

Climate (2020–Present)

Scappoose Industrial Airpark (16.8 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    63.3 °F
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