Hamilton Weather Forecast

    • 52
    • 69

    Increasing Clouds

    • 46
    • 63

    Rain

    • 46
    • 63

    Chance Rain

    • 50
    • 70

    Partly Sunny

    • 51
    • 73

    Partly Sunny

    • 47
    • 63

    Chance Rain

Today 24 May Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the mid 60s to lower 70s. South wind to 10 Mph with Gusts to 20 Mph becoming southwest in the afternoon.

Tonight 24 May Foothills and Valleys of the North Cascades

Mostly cloudy until early Morning, then a slight chance of rain in the morning. Lows near 50. South wind to 10 Mph becoming southeast with Gusts to 30 Mph after midnight.

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Hamilton Temperature Statistics

May Temperature

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

  • Lowest 16 May, 2026

    42.8 °F

  • Average May

    55.7 °F

  • Highest 4 May, 2026

    78.8 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.6 °F
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