Newhalem Weather Forecast

    • 34
    • 50

    Increasing Clouds

    • 38
    • 50

    Mostly Cloudy

    • 37
    • 51

    Chance Rain

    • 37
    • 51

    Slight Chance Rain

    • 36
    • 50

    Slight Chance Rain

    • 34
    • 51

    Slight Chance Rain

Today 23 Oct Foothills and Valleys of the North Cascades

Sunny. Highs in the mid 50s to lower 60s. Light wind.

Tonight 23 Oct Foothills and Valleys of the North Cascades

Mostly clear. Lows in the mid 30s to lower 40s. Light wind.

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Newhalem Temperature Statistics

October Temperature

Arlington Municipal Airport (54.7 miles)

  • Lowest 12 October, 2026

    32 °F

  • Average October

    53 °F

  • Highest 16 October, 2026

    78.1 °F

Climate (2021–2026)

Arlington Municipal Airport (54.7 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    60 °F
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