Stimson Hill Weather Forecast

    • 50
    • 68

    Increasing Clouds

    • 51
    • 69

    Partly Sunny

    • 51
    • 69

    Mostly Sunny

    • 51
    • 68

    Partly Sunny

    • 55
    • 72

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

Today 9 Aug Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the 70s. Light wind.

Tonight 9 Aug Foothills and Valleys of the North Cascades

Partly cloudy. Lows in the lower to mid 50s. Light wind.

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Stimson Hill Temperature Statistics

August Temperature

Arlington Municipal Airport (9.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    63.7 °F

  • Highest 6 August, 2026

    84.9 °F

Climate (2021–2026)

Arlington Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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