Riverview Weather Forecast

    • 54
    • 68

    Rain Showers

    • 54
    • 64

    Rain Showers Likely

    • 52
    • 69

    Partly Sunny

    • 53
    • 73

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

Today 12 Sep Inner Vancouver Metro

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs around 70. Winds light. Chance of rain 30 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 12 Sep Inner Vancouver Metro

Showers with a slight chance of Thunderstorms in the Evening, then rain likely after midnight. Lows in the lower 50s. Southwest wind 5 to 10 Mph. Chance of rain 90 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverview Temperature Statistics

September Temperature

Portland, Portland International Airport (0.6 miles)

  • Lowest 8 September, 2026

    51.7 °F

  • Average September

    64.8 °F

  • Highest 9 September, 2026

    87.1 °F

Climate (2021–2026)

Portland, Portland International Airport (0.6 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.4 °F
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