Aspen Lake Weather Forecast

    • 41
    • 71

    Sunny

    • 44
    • 74

    Sunny

    • 47
    • 77

    Sunny

    • 48
    • 79

    Mostly Sunny

    • 46
    • 77

    Partly Sunny

    • 48
    • 77

    Mostly Sunny

Today 28 Sep Siskiyou Mountains and Southern Oregon Cascades

Sunny. Highs in the lower 60s to lower 70s. Northeast Winds around 5 Mph shifting to the northwest this afternoon.

Tonight 28 Sep Siskiyou Mountains and Southern Oregon Cascades

Mostly clear. Lows in the lower to mid 40s. Northwest Winds 5 to 10 Mph.

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Aspen Lake Temperature Statistics

September Temperature

Klamath Falls International Airport (17.4 miles)

  • Lowest 7 September, 2026

    31.6 °F

  • Average September

    55.2 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Klamath Falls International Airport (17.4 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    63.3 °F
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