Hamilton Weather Forecast

    • 53
    • 75

    Becoming Sunny

    • 56
    • 81

    Mostly Sunny

    • 51
    • 69

    Rain Showers

    • 48
    • 70

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

Today 30 Jul Foothills and Valleys of the North Cascades

Sunny. Highs in the 70s. South wind to 10 Mph in the morning becoming light.

Tonight 30 Jul Foothills and Valleys of the North Cascades

Mostly clear. Lows in the lower to mid 50s. Light wind.

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Hamilton Temperature Statistics

July Temperature

Burlington/Mount Vernon, Skagit Regional Airport (19.9 miles)

  • Lowest 2 July, 2026

    46.4 °F

  • Average July

    62.7 °F

  • Highest 22 July, 2026

    87.8 °F

Climate (2021–2026)

Burlington/Mount Vernon, Skagit Regional Airport (19.9 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.3 °F
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