Rattlesnake Mountain Scenic Area Weather Forecast

    • 31
    • 46

    Increasing Clouds

    • 28
    • 42

    Partly Sunny

    • 26
    • 41

    Sunny

    • 27
    • 42

    Mostly Sunny

    • 30
    • 42

    Partly Sunny

    • 33
    • 43

    Slight Chance Rain/Snow

    • 36
    • 48

    Chance Rain/Snow

Today 21 Jan Foothills and Valleys of Central King County

Sunny. Highs near 50. Light wind.

Tonight 21 Jan Foothills and Valleys of Central King County

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rattlesnake Mountain Scenic Area 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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