Beaver Slough - Anunde Island Weather Forecast

    • 41
    • 58

    Rain

    • 35
    • 52

    Chance Rain/Snow

    • 38
    • 54

    Chance Rain/Snow

    • 45
    • 57

    Rain

    • 41
    • 55

    Rain

    • 36
    • 52

    Rain

Today 20 Mar Lower Columbia River

A chance of rain this Morning, then rain likely this afternoon. Highs around 60. Winds light. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 20 Mar Lower Columbia River

Mostly cloudy. A chance of Rain, mainly in the evening. Lows around 40. Winds light. Chance of rain 50 percent. Rainfall Amounts a tenth to a quarter of an inch.

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Beaver Slough - Anunde Island Temperature Statistics

March Temperature

Southwest Washington Regional Airport (15.5 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    46.9 °F

  • Highest 16 March, 2026

    66 °F

Climate (2021–Present)

Southwest Washington Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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