Loutsis Dam Weather Forecast

    • 30
    • 48

    Increasing Clouds

    • 27
    • 42

    Partly Sunny

    • 26
    • 44

    Mostly Sunny

    • 28
    • 44

    Partly Sunny

    • 31
    • 44

    Chance Rain/Snow

    • 34
    • 46

    Chance Rain

    • 37
    • 50

    Mostly Cloudy

Today 21 Jan Foothills and Valleys of Snohomish and Northern King Counties

Sunny. Highs in the mid 40s to lower 50s. Light wind.

Tonight 21 Jan Foothills and Valleys of Snohomish and Northern King Counties

Partly cloudy until early morning then becoming mostly cloudy. Lows in the 30s. Light wind.

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  • Temperature Real-Time

Loutsis Dam Temperature Statistics

January Temperature

Renton Municipal Airport (18.6 miles)

  • Lowest 18 January, 2026

    30.9 °F

  • Average January

    44.7 °F

  • Highest 13 January, 2026

    59 °F

Climate (2021–Present)

Renton Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    62.2 °F
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