Rattlesnake Lake Weather Forecast

    • 41
    • 49

    Rain

    • 43
    • 48

    Rain

    • 47
    • 51

    Rain

    • 43
    • 58

    Partly Sunny

    • 39
    • 54

    Partly Sunny

    • 38
    • 52

    Mostly Sunny

Today 10 Jan Foothills and Valleys of Central King County

Mostly cloudy. A slight chance of rain late in the afternoon. Highs in the upper 40s to mid 50s. Southeast wind around 10 Mph.

Tonight 10 Jan Foothills and Valleys of Central King County

Rain likely in the Evening, then rain after midnight. Rainfall Amounts a quarter to a half inch possible. Lows in the lower to mid 40s. Southeast wind to 10 Mph.

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Rattlesnake Lake Temperature Statistics

January Temperature

Renton Municipal Airport (20.5 miles)

  • Lowest 1 January, 2026

    33.1 °F

  • Average January

    43.5 °F

  • Highest 3 January, 2026

    55 °F

Climate (2021–Present)

Renton Municipal Airport (20.5 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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