Ilwaco Weather Forecast

    • 58
    • 65

    Mostly Cloudy

    • 59
    • 66

    Mostly Cloudy

    • 56
    • 65

    Partly Sunny

    • 58
    • 67

    Mostly Sunny

    • 59
    • 69

    Mostly Sunny

    • 59
    • 67

    Partly Sunny

Today 18 Aug South Washington Coast

Partly sunny. Highs in the upper 60s. South wind 5 to 10 Mph.

Tonight 18 Aug South Washington Coast

Mostly cloudy. Lows in the mid 50s. South wind 5 to 10 Mph.

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Ilwaco Temperature Statistics

August Temperature

Astoria, Astoria Regional Airport (12.4 miles)

  • Lowest 8 August, 2025

    47.6 °F

  • Average August

    63.4 °F

  • Highest 11 August, 2025

    83.6 °F

Climate (2020–Present)

Astoria, Astoria Regional Airport (12.4 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    59.5 °F
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