Newhalem Weather Forecast

    • 38
    • 54

    Decreasing Clouds

    • 43
    • 62

    Mostly Sunny

    • 53
    • 71

    Partly Sunny

    • 55
    • 75

    Partly Sunny

    • 48
    • 65

    Chance Rain

    • 46
    • 62

    Slight Chance Rain

Today 30 May Foothills and Valleys of the North Cascades

Partly sunny. Highs in the lower to mid 60s. West wind to 10 Mph.

Tonight 30 May Foothills and Valleys of the North Cascades

Mostly clear. Lows in the upper 30s to mid 40s. West wind to 10 Mph in the evening becoming light.

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Newhalem Temperature Statistics

May Temperature

Arlington Municipal Airport (54.7 miles)

  • Lowest 18 May, 2026

    42.1 °F

  • Average May

    56.8 °F

  • Highest 12 May, 2026

    84 °F

Climate (2021–Present)

Arlington Municipal Airport (54.7 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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