Fallen Leaf Lake Weather Forecast

    • 40
    • 52

    Mostly Cloudy

    • 42
    • 53

    Mostly Cloudy

    • 43
    • 52

    Chance Rain Showers

    • 44
    • 54

    Chance Rain Showers

    • 41
    • 59

    Partly Sunny

    • 40
    • 54

    Partly Sunny

    • 39
    • 55

    Mostly Sunny

Today 9 Jan East Clark County Lowlands

Mostly cloudy this Morning, then becoming partly sunny. Highs in the lower 50s. Winds light.

Tonight 9 Jan East Clark County Lowlands

Mostly cloudy. Lows around 40. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fallen Leaf Lake Temperature Statistics

January Temperature

Portland, Portland-Troutdale Airport (3.1 miles)

  • Lowest 5 January, 2026

    35.1 °F

  • Average January

    42.3 °F

  • Highest 4 January, 2026

    52 °F

Climate (2021–Present)

Portland, Portland-Troutdale Airport (3.1 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.2 °F
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