Columbia River - Wallace Slough Entrance Weather Forecast

    • 50
    • 69

    Gradual Clearing

    • 52
    • 70

    Partly Sunny

    • 53
    • 69

    Mostly Cloudy

    • 51
    • 69

    Partly Sunny

    • 51
    • 72

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

Today 8 Jul Lower Columbia River

Mostly cloudy this Morning, then becoming mostly sunny. Highs in the upper 70s. Northwest wind 5 to 10 Mph.

Tonight 8 Jul Lower Columbia River

Mostly clear in the Evening, then becoming partly cloudy. Lows around 50. Northwest wind 5 to 10 Mph.

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Columbia River - Wallace Slough Entrance Temperature Statistics

July Temperature

Southwest Washington Regional Airport (18.6 miles)

  • Lowest 6 July, 2026

    51.1 °F

  • Average July

    63.7 °F

  • Highest 6 July, 2026

    84.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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