Loutsis Dam Weather Forecast

    • 45
    • 55

    Rain Showers

    • 40
    • 57

    Chance Rain Showers

    • 44
    • 61

    Chance Rain

    • 47
    • 59

    Rain

    • 50
    • 61

    Rain

    • 44
    • 56

    Rain

Today 19 Oct Foothills and Valleys of Snohomish and Northern King Counties

Rain. Rainfall Amounts one to three Inches possible. Highs in the 50s. South wind 10 to 15 Mph becoming southwest in the afternoon. Gusts to 25 Mph.

Tonight 19 Oct Foothills and Valleys of Snohomish and Northern King Counties

Rain Showers and a slight chance of Thunderstorms in the Evening, then rain at Times late in the evening. Rain likely after midnight. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Lows in the lower to mid 40s. West wind to 10 Mph in the evening becoming Light, Gusts to 20 Mph in the evening.

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Loutsis Dam Temperature Statistics

October Temperature

Renton Municipal Airport (18.6 miles)

  • Lowest 15 October, 2025

    36 °F

  • Average October

    55.4 °F

  • Highest 7 October, 2025

    75.9 °F

Climate (2020–Present)

Renton Municipal Airport (18.6 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    62.2 °F
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