Hamilton Weather Forecast

    • 52
    • 74

    Becoming Sunny

    • 50
    • 77

    Partly Sunny

    • 44
    • 62

    Chance Rain

    • 43
    • 63

    Partly Sunny

    • 46
    • 66

    Partly Sunny

    • 52
    • 75

    Partly Sunny

Today 27 May Foothills and Valleys of the North Cascades

Mostly sunny. Patchy fog in the morning. Highs in the 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 27 May Foothills and Valleys of the North Cascades

Mostly clear. Lows near 50. Northwest wind to 10 Mph in the evening becoming light.

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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

    55.9 °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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