Lost Lake Weather Forecast

    • 57
    • 84

    Decreasing Clouds

    • 46
    • 69

    Mostly Sunny

    • 49
    • 67

    Mostly Sunny

    • 55
    • 79

    Partly Sunny

    • 52
    • 77

    Partly Sunny

    • 50
    • 70

    Mostly Sunny

Today 15 Jun North Oregon Cascades

Mostly sunny. Free air freezing level 16000 feet. Winds Light, becoming northwest 5 to 10 Mph.

Tonight 15 Jun North Oregon Cascades

Mostly cloudy in the Evening, then clearing. Free air freezing level 16000 Feet, increasing to free air freezing level above 16000 feet after midnight. Pass Winds west 5 to 10 Mph, becoming southwest after midnight.

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Lost Lake Temperature Statistics

June Temperature

Portland, Portland-Troutdale Airport (28.6 miles)

  • Lowest 1 June, 2026

    44.7 °F

  • Average June

    63.3 °F

  • Highest 13 June, 2026

    90 °F

Climate (2021–Present)

Portland, Portland-Troutdale Airport (28.6 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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