Hamilton Weather Forecast

    • 50
    • 72

    Partly Sunny

    • 51
    • 75

    Partly Sunny

    • 52
    • 73

    Partly Sunny

    • 54
    • 77

    Mostly Sunny

    • 57
    • 81

    Sunny

    • 59
    • 87

    Sunny

    • 60
    • 88

    Mostly Sunny

Today 3 Jul Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the upper 60s to mid 70s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 3 Jul Foothills and Valleys of the North Cascades

Partly cloudy. Lows near 50. West wind to 10 Mph in the evening becoming light.

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Hamilton Temperature Statistics

July Temperature

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

  • Lowest 1 July, 2025

    50 °F

  • Average July

    63.2 °F

  • Highest 1 July, 2025

    75.2 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59.8 °F
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