Rattlesnake Lake Weather Forecast

    • 47
    • 62

    Rain

    • 45
    • 57

    Rain

    • 42
    • 52

    Rain

    • 39
    • 50

    Rain

    • 40
    • 54

    Chance Rain

    • 41
    • 58

    Partly Sunny

Today 9 Oct Foothills and Valleys of Central King County

Mostly cloudy. Rain likely in the Morning, then a chance of rain late in the morning. A slight chance of rain in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the lower to mid 60s. Light wind.

Tonight 9 Oct Foothills and Valleys of Central King County

Mostly cloudy. A slight chance of rain in the late evening and early morning. A chance of rain in the morning. Lows in the mid 40s to lower 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rattlesnake Lake Temperature Statistics

October Temperature

Renton Municipal Airport (20.5 miles)

  • Lowest 6 October, 2025

    45 °F

  • Average October

    58.7 °F

  • Highest 7 October, 2025

    75.9 °F

Climate (2020–Present)

Renton Municipal Airport (20.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    62.2 °F
Get WillyWeather+ to remove ads