Wahtum Lake Weather Forecast

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    • 66

    Rain

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    • 44

    Rain

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    • 47

    Partly Sunny

    • 36
    • 43

    Rain/Snow Likely

    • 35
    • 42

    Rain/Snow Likely

    • 38
    • 49

    Partly Sunny

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    • 55

    Partly Sunny

Today 12 May North Oregon Cascades

Mostly sunny. Free air freezing level 13000 feet. Pass Winds northwest 5 to 10 Mph.

Tonight 12 May North Oregon Cascades

A chance of Thunderstorms in the Evening, then rain with a slight chance of Thunderstorms after midnight. Snow level above 8000 feet after midnight. Pass Winds west 10 to 15 Mph with Gusts up to 35 Mph. Chance of rain near 100 percent. Rainfall Amounts around a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Wahtum Lake Temperature Statistics

May Temperature

Portland, Portland-Troutdale Airport (29.8 miles)

  • Lowest 9 May, 2026

    45.6 °F

  • Average May

    62.7 °F

  • Highest 3 May, 2026

    91.7 °F

Climate (2021–Present)

Portland, Portland-Troutdale Airport (29.8 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.3 °F
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