Cascade Locks State Airport Weather Forecast

    • 60
    • 74

    Chance Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 58
    • 70

    Rain Showers

    • 59
    • 63

    Rain Showers

    • 58
    • 68

    Chance Rain Showers

    • 60
    • 73

    Chance Rain Showers

    • 61
    • 74

    Chance Rain Showers

Today 6 Sep West Columbia River Gorge I-84 Corridor

Mostly cloudy with a slight chance of Showers this Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the upper 70s. Southwest wind 5 to 10 Mph. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 6 Sep West Columbia River Gorge I-84 Corridor

A slight chance of Thunderstorms this evening. Mostly cloudy with a chance of Showers. Lows around 60. Southwest wind 5 to 10 Mph. Chance of rain 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cascade Locks State Airport Temperature Statistics

September Temperature

Portland, Portland-Troutdale Airport (26.7 miles)

  • Lowest 2 September, 2025

    55.9 °F

  • Average September

    71.4 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Portland, Portland-Troutdale Airport (26.7 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.2 °F
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