Beaverton Weather Forecast

    • 59
    • 77

    Slight Chance Rain Showers

    • 61
    • 73

    Rain Showers

    • 59
    • 71

    Rain Showers

    • 57
    • 74

    Mostly Cloudy

    • 59
    • 76

    Mostly Cloudy

    • 58
    • 78

    Slight Chance Rain Showers

Today 7 Sep Tualatin Valley

Mostly cloudy with drizzle likely this Morning, then mostly sunny this afternoon. Highs in the upper 70s. Winds light.

Tonight 7 Sep Tualatin Valley

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. Winds light.

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Beaverton Temperature Statistics

September Temperature

Portland-Hillsboro Airport (8.1 miles)

  • Lowest 1 September, 2025

    54 °F

  • Average September

    72.3 °F

  • Highest 2 September, 2025

    91 °F

Climate (2020–Present)

Portland-Hillsboro Airport (8.1 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    64.3 °F
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