Seaside Weather Forecast

    • 40
    • 54

    Rain

    • 37
    • 49

    Chance Rain

    • 39
    • 51

    Chance Rain

    • 43
    • 52

    Rain

    • 41
    • 53

    Rain

    • 39
    • 50

    Rain Likely

Today 20 Mar Clatsop County Coast

Rain. Highs in the mid 50s. Southwest wind 5 to 10 Mph. Chance of rain near 100 percent. Rainfall Amounts around a quarter of an inch.

Tonight 20 Mar Clatsop County Coast

Mostly cloudy with a 50 percent chance of rain. Lows around 40. Northwest wind 5 to 10 Mph. Rainfall Amounts around a tenth of an inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seaside Temperature Statistics

March Temperature

Astoria, Astoria Regional Airport (11.2 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    47.1 °F

  • Highest 16 March, 2026

    61 °F

Climate (2021–Present)

Astoria, Astoria Regional Airport (11.2 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.7 °F
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