Moss Bay Weather Forecast

    • 53
    • 67

    Mostly Sunny

    • 54
    • 74

    Becoming Sunny

    • 56
    • 75

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 55
    • 72

    Partly Sunny

    • 55
    • 73

    Partly Sunny

    • 56
    • 71

    Slight Chance Rain

Today 15 Sep Eastside

Mostly cloudy until late afternoon then becoming mostly sunny. A slight chance of Showers in the morning. Highs in the mid to upper 60s. Light wind.

Tonight 15 Sep Eastside

Mostly clear. Patchy fog late in the night. Lows in the upper 40s to mid 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Moss Bay Temperature Statistics

September Temperature

Boeing Field - King County International Airport (9.9 miles)

  • Lowest 5 September, 2026

    53.1 °F

  • Average September

    62.5 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Boeing Field - King County International Airport (9.9 miles)

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

  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.6 °F
Get WillyWeather+ to remove ads