Rockport Weather Forecast

    • 48
    • 72

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

    • 47
    • 67

    Mostly Cloudy

    • 48
    • 65

    Chance Rain

    • 47
    • 67

    Chance Rain

    • 48
    • 69

    Slight Chance Rain

Today 8 Sep Foothills and Valleys of the North Cascades

Sunny. Highs in the 70s. Light wind.

Tonight 8 Sep Foothills and Valleys of the North Cascades

Mostly clear. Lows near 50. Light wind.

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Rockport Temperature Statistics

September Temperature

Arlington Municipal Airport (34.2 miles)

  • Lowest 5 September, 2026

    48.9 °F

  • Average September

    60.7 °F

  • Highest 4 September, 2026

    73 °F

Climate (2021–2026)

Arlington Municipal Airport (34.2 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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