Seaside Weather Forecast

    • 53
    • 67

    Partly Sunny

    • 54
    • 63

    Mostly Cloudy

    • 53
    • 66

    Mostly Sunny

    • 59
    • 77

    Partly Sunny

    • 56
    • 76

    Partly Sunny

    • 53
    • 67

    Mostly Sunny

Today 19 Jun Clatsop County Coast

Sunny. Highs in the lower 70s. West wind 5 to 10 Mph.

Tonight 19 Jun Clatsop County Coast

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. West wind 5 to 10 Mph.

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  • Temperature Real-Time

Seaside Temperature Statistics

June Temperature

Astoria, Astoria Regional Airport (11.2 miles)

  • Lowest 1 June, 2026

    41.6 °F

  • Average June

    59.2 °F

  • Highest 14 June, 2026

    89.1 °F

Climate (2021–2026)

Astoria, Astoria Regional Airport (11.2 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    59.9 °F
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