Bellevue Weather Forecast

    • 53
    • 71

    Becoming Sunny

    • 54
    • 74

    Mostly Sunny

    • 59
    • 73

    Rain Likely

    • 53
    • 69

    Chance Rain

    • 55
    • 72

    Partly Sunny

    • 57
    • 71

    Chance Rain

Today 18 Sep Eastside

Mostly sunny. Highs in the upper 60s to mid 70s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 18 Sep Eastside

Mostly clear. Lows in the lower to mid 50s. North wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Bellevue Temperature Statistics

September Temperature

Boeing Field - King County International Airport (6.8 miles)

  • Lowest 15 September, 2025

    54 °F

  • Average September

    65.5 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Boeing Field - King County International Airport (6.8 miles)

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

  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    61.4 °F
Get WillyWeather+ to remove ads