Wallace Slough - Beaver Slough Entrance Weather Forecast

    • 61
    • 83

    Mostly Cloudy

    • 62
    • 85

    Mostly Cloudy

    • 61
    • 86

    Partly Sunny

    • 58
    • 78

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 56
    • 73

    Partly Sunny

Today 20 Jul Lower Columbia River

Mostly cloudy this Morning, then becoming partly sunny. Highs around 90. Winds light.

Tonight 20 Jul Lower Columbia River

Mostly cloudy. Lows in the lower 60s. Winds light.

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Wallace Slough - Beaver Slough Entrance Temperature Statistics

July Temperature

Southwest Washington Regional Airport (16.2 miles)

  • Lowest 9 July, 2026

    48.9 °F

  • Average July

    64.5 °F

  • Highest 6 July, 2026

    84.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (16.2 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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