Newhalem Weather Forecast

    • 39
    • 55

    Mostly Cloudy

    • 38
    • 58

    Partly Sunny

    • 41
    • 57

    Mostly Cloudy

    • 45
    • 64

    Partly Sunny

    • 44
    • 65

    Partly Sunny

    • 46
    • 66

    Partly Sunny

    • 43
    • 63

    Partly Sunny

Today 17 May Foothills and Valleys of the North Cascades

Mostly cloudy in the morning then becoming mostly sunny. Highs in the lower to mid 60s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 17 May Foothills and Valleys of the North Cascades

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 40s. West wind to 10 Mph becoming northeast after midnight.

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Newhalem Temperature Statistics

May Temperature

Arlington Municipal Airport (54.7 miles)

  • Lowest 12 May, 2026

    44.6 °F

  • Average May

    57.5 °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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