Oregon City Weather Forecast

    • 59
    • 79

    Chance Rain Showers

    • 59
    • 77

    Slight Chance Rain Showers

    • 60
    • 72

    Rain Showers

    • 58
    • 69

    Rain Showers

    • 56
    • 73

    Chance Rain Showers

    • 58
    • 77

    Partly Sunny

    • 59
    • 79

    Mostly Cloudy

Today 6 Sep Inner Portland Metro

Mostly cloudy this Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs around 80. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 6 Sep Inner Portland Metro

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this Evening, then a slight chance of Showers after midnight. Lows in the upper 50s. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Oregon City Temperature Statistics

September Temperature

Aurora State Airport (10.6 miles)

  • Lowest 1 September, 2025

    57.9 °F

  • Average September

    72.1 °F

  • Highest 4 September, 2025

    90 °F

Climate (2020–Present)

Aurora State Airport (10.6 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    64.9 °F
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