Columbia River - Bernie Slough Weather Forecast

    • 51
    • 65

    Gradual Clearing

    • 53
    • 75

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 52
    • 71

    Partly Sunny

    • 54
    • 73

    Partly Sunny

    • 54
    • 72

    Partly Sunny

Today 15 Sep Willapa and Wahkiakum Lowlands

Mostly cloudy this Morning, then becoming partly sunny. Patchy fog this morning. Highs in the mid 60s. Winds light.

Tonight 15 Sep Willapa and Wahkiakum Lowlands

Mostly clear. Lows in the lower 50s. Winds light.

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Columbia River - Bernie Slough Temperature Statistics

September Temperature

Astoria, Astoria Regional Airport (23 miles)

  • Lowest 8 September, 2026

    48.7 °F

  • Average September

    60.3 °F

  • Highest 9 September, 2026

    77.6 °F

Climate (2021–2026)

Astoria, Astoria Regional Airport (23 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    59.9 °F
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