Columbia River - Welch Island Weather Forecast

    • 36
    • 52

    Increasing Clouds

    • 36
    • 55

    Mostly Cloudy

    • 45
    • 56

    Rain Showers

    • 42
    • 55

    Rain Showers

    • 37
    • 52

    Rain

    • 37
    • 54

    Chance Rain

    • 39
    • 59

    Partly Sunny

Today 21 Mar Clatsop County Coast

Sunny. Highs around 50. Winds light.

Tonight 21 Mar Clatsop County Coast

Mostly clear. Areas of frost after midnight. Lows in the mid 30s. Winds light this Evening, becoming light and variable.

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Columbia River - Welch Island Temperature Statistics

March Temperature

Astoria, Astoria Regional Airport (19.9 miles)

  • Lowest 10 March, 2026

    31.6 °F

  • Average March

    48 °F

  • Highest 16 March, 2026

    61.6 °F

Climate (2021–Present)

Astoria, Astoria Regional Airport (19.9 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.7 °F
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