Wahtum Lake Weather Forecast

    • 44
    • 53

    Increasing Clouds

    • 42
    • 50

    Rain

    • 41
    • 46

    Rain

    • 44
    • 54

    Mostly Sunny

    • 49
    • 59

    Mostly Sunny

    • 53
    • 62

    Mostly Sunny

Today 11 Sep North Oregon Cascades

Partly sunny. Free air freezing level 11000 feet. Winds light.

Tonight 11 Sep North Oregon Cascades

Mostly cloudy. Free air freezing level 11000 feet. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Wahtum Lake Temperature Statistics

September Temperature

Portland, Portland-Troutdale Airport (29.8 miles)

  • Lowest 8 September, 2026

    48 °F

  • Average September

    62.6 °F

  • Highest 8 September, 2026

    82.9 °F

Climate (2021–2026)

Portland, Portland-Troutdale Airport (29.8 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.2 °F
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