Newhalem Weather Forecast

    • 54
    • 73

    Chance Thunderstorms

    • 56
    • 74

    Partly Sunny

    • 53
    • 74

    Partly Sunny

    • 54
    • 73

    Partly Sunny

    • 53
    • 70

    Partly Sunny

    • 52
    • 69

    Partly Sunny

Today 14 Aug Foothills and Valleys of the North Cascades

Mostly sunny. A slight chance of rain in the morning. A slight chance of Thunderstorms in the afternoon. A chance of Showers late in the afternoon. Highs in the upper 70s to mid 80s. Light wind.

Tonight 14 Aug Foothills and Valleys of the North Cascades

Partly cloudy. A slight chance of Thunderstorms in the Evening, then a slight chance of rain late in the evening. Lows in the mid to upper 50s. Light wind.

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Newhalem Temperature Statistics

August Temperature

Arlington Municipal Airport (54.7 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.1 °F

  • Highest 6 August, 2026

    84.9 °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

    59.8 °F
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