Newhalem Weather Forecast

    • 47
    • 70

    Chance Rain

    • 42
    • 60

    Rain

    • 42
    • 53

    Rain Showers

    • 44
    • 59

    Chance Rain

    • 48
    • 65

    Slight Chance Rain

    • 49
    • 67

    Chance Rain

Today 1 Sep Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the 70s. Light wind becoming southwest to 10 Mph in the afternoon.

Tonight 1 Sep Foothills and Valleys of the North Cascades

Mostly cloudy. A slight chance of rain until early Morning, then a chance of rain in the morning. Lows in the 50s. South wind to 10 Mph becoming southeast after midnight. Gusts to 30 Mph.

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Newhalem Temperature Statistics

September Temperature

Arlington Municipal Airport (54.7 miles)

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  • Average September

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Climate (2021–2026)

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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