Hamilton Weather Forecast

    • 56
    • 77

    Increasing Clouds

    • 53
    • 72

    Rain Likely

    • 51
    • 75

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 55
    • 80

    Mostly Sunny

    • 53
    • 75

    Chance Rain

Today 27 Jul Foothills and Valleys of the North Cascades

Partly sunny until late afternoon then becoming sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. South wind to 10 Mph.

Tonight 27 Jul Foothills and Valleys of the North Cascades

Partly cloudy. Lows in the mid to upper 50s. Light wind becoming southeast to 10 Mph after Midnight, Gusts to 20 Mph after midnight.

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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

    62.5 °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

    59.4 °F
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