Trillium Lake Weather Forecast

    • 41
    • 63

    Mostly Sunny

    • 33
    • 52

    Slight Chance Rain/Snow

    • 31
    • 40

    Partly Sunny

    • 35
    • 50

    Chance Rain

    • 33
    • 46

    Chance Rain

    • 33
    • 44

    Partly Sunny

    • 32
    • 44

    Partly Sunny

Today 21 Oct North Oregon Cascades

Sunny. Free air freezing level 11000 feet. Light and variable Winds.

Tonight 21 Oct North Oregon Cascades

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Trillium Lake Temperature Statistics

October Temperature

The Dalles Municipal Airport (36.7 miles)

  • Lowest 13 October, 2026

    36.6 °F

  • Average October

    60.5 °F

  • Highest 5 October, 2026

    88.6 °F

Climate (2021–2026)

The Dalles Municipal Airport (36.7 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    66.9 °F
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