Larch Mountain Weather Forecast

    • 57
    • 73

    Slight Chance Thunderstorms

    • 56
    • 75

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 52
    • 67

    Partly Sunny

    • 52
    • 65

    Partly Sunny

    • 57
    • 69

    Mostly Sunny

Today 27 Aug North Oregon Cascades

Areas of smoke this morning. Mostly sunny with a 20 percent chance of Thunderstorms. Free air freezing level 13000 feet. Winds light.

Tonight 27 Aug North Oregon Cascades

Mostly clear. Free air freezing level 13000 feet. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Larch Mountain Temperature Statistics

August Temperature

Portland, Portland-Troutdale Airport (14.9 miles)

  • Lowest 8 August, 2025

    50.6 °F

  • Average August

    71.5 °F

  • Highest 23 August, 2025

    100.9 °F

Climate (2020–Present)

Portland, Portland-Troutdale Airport (14.9 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.1 °F
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