Preston Weather Forecast

    • 50
    • 74

    Becoming Sunny

    • 52
    • 77

    Mostly Sunny

    • 55
    • 76

    Rain

    • 49
    • 70

    Chance Rain

    • 52
    • 74

    Partly Sunny

    • 54
    • 77

    Chance Rain

Today 18 Sep Foothills and Valleys of Central King County

Partly sunny until late afternoon then becoming sunny. Highs in the lower to mid 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 18 Sep Foothills and Valleys of Central King County

Mostly clear. Lows near 50. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Preston Temperature Statistics

September Temperature

Renton Municipal Airport (13 miles)

  • Lowest 15 September, 2025

    53.1 °F

  • Average September

    66.7 °F

  • Highest 16 September, 2025

    91 °F

Climate (2020–Present)

Renton Municipal Airport (13 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