Seaside Beach Weather Forecast

    • 55
    • 66

    Increasing Clouds

    • 53
    • 62

    Mostly Cloudy

    • 53
    • 61

    Mostly Cloudy

    • 51
    • 61

    Partly Sunny

    • 52
    • 62

    Partly Sunny

    • 53
    • 63

    Partly Sunny

    • 53
    • 62

    Partly Sunny

Today 30 Jun Clatsop County Coast

Sunny. Highs in the upper 70s. Northwest wind 10 to 15 Mph.

Tonight 30 Jun Clatsop County Coast

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 50s. Northwest wind 10 to 15 Mph.

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  • Temperature Real-Time

Seaside Beach Temperature Statistics

June Temperature

Astoria, Astoria Regional Airport (11.2 miles)

  • Lowest 19 June, 2025

    44.7 °F

  • Average June

    57 °F

  • Highest 8 June, 2025

    77.6 °F

Climate (2020–Present)

Astoria, Astoria Regional Airport (11.2 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    59.4 °F
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