Lake Ketchum Weather Forecast

    • 41
    • 50

    Rain Likely

    • 35
    • 49

    Rain Likely

    • 33
    • 49

    Partly Sunny

    • 35
    • 51

    Mostly Sunny

    • 36
    • 52

    Mostly Cloudy

    • 41
    • 55

    Rain Likely

Today 26 Feb Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy with a chance of rain. Highs near 50. Southeast wind 10 to 20 Mph becoming south in the afternoon. Gusts to 30 Mph.

Tonight 26 Feb Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy with a chance of rain. Lows in the upper 30s to mid 40s. South wind 10 to 15 Mph with Gusts to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Ketchum Temperature Statistics

February Temperature

Arlington Municipal Airport (11.8 miles)

  • Lowest 20 February, 2026

    19.9 °F

  • Average February

    42.1 °F

  • Highest 4 February, 2026

    63 °F

Climate (2021–Present)

Arlington Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.9 °F
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