Thunder Arm Weather Forecast

    • 52
    • 80

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 45
    • 68

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 44
    • 62

    Mostly Cloudy

    • 44
    • 63

    Slight Chance Rain

Today 3 May Foothills and Valleys of the North Cascades

Sunny. Highs in the upper 70s to mid 80s. Light wind becoming northwest around 10 Mph in the afternoon.

Tonight 3 May Foothills and Valleys of the North Cascades

Mostly clear. Lows in the 50s. Northwest wind to 10 Mph in the evening becoming light.

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Thunder Arm Temperature Statistics

May Temperature

Arlington Municipal Airport (60.9 miles)

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  • Average May

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Climate (2021–Present)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.9 °F
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