Marblemount Weather Forecast

    • 37
    • 52

    Sunny

    • 36
    • 54

    Sunny

    • 38
    • 54

    Sunny

    • 37
    • 55

    Sunny

    • 38
    • 56

    Mostly Sunny

    • 36
    • 53

    Patchy Fog

Today 15 Jan Foothills and Valleys of the North Cascades

Sunny. Patchy dense fog until late afternoon. Highs in the upper 40s to mid 50s. Light wind.

Tonight 15 Jan Foothills and Valleys of the North Cascades

Clear. Patchy dense fog in the late evening and early morning. Lows in the mid to upper 30s. Northeast wind to 10 Mph. Gusts to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marblemount Temperature Statistics

January Temperature

Arlington Municipal Airport (41 miles)

  • Lowest 1 January, 2026

    26.6 °F

  • Average January

    44.6 °F

  • Highest 13 January, 2026

    57.9 °F

Climate (2021–Present)

Arlington Municipal Airport (41 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.8 °F
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