Wahtum Lake Weather Forecast

    • 38
    • 48

    Rain Showers

    • 40
    • 49

    Mostly Cloudy

    • 40
    • 53

    Partly Sunny

    • 43
    • 52

    Mostly Cloudy

    • 45
    • 50

    Chance Rain

    • 42
    • 52

    Mostly Cloudy

Today 25 Sep North Oregon Cascades

Rain Showers this Morning, then rain Showers likely with a slight chance of Thunderstorms this afternoon. Snow level 6500 feet. Breezy. Pass Winds southwest 15 to 25 Mph with Gusts up to 50 Mph. Chance of rain near 100 percent. Rainfall Amounts a tenth to a half of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 25 Sep North Oregon Cascades

Mostly cloudy. A chance of rain Showers in the evening. Areas of fog after midnight. Snow level 5000 feet. Pass Winds west 5 to 10 Mph. Chance of rain 50 percent. Rainfall Amounts less than a tenth of an inch.

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Wahtum Lake Temperature Statistics

September Temperature

Portland, Portland-Troutdale Airport (29.8 miles)

  • Lowest 16 September, 2026

    47.6 °F

  • Average September

    62.9 °F

  • Highest 9 September, 2026

    88.6 °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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