Upper Klamath National Wildlife Refuge Weather Forecast

    • 47
    • 72

    Increasing Clouds

    • 49
    • 75

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 44
    • 73

    Mostly Sunny

    • 43
    • 70

    Mostly Sunny

    • 44
    • 71

    Partly Sunny

    • 42
    • 66

    Partly Sunny

Today 19 Sep Siskiyou Mountains and Southern Oregon Cascades

Partly cloudy. Highs in the mid 50s to mid 60s.

Tonight 19 Sep Siskiyou Mountains and Southern Oregon Cascades

Mostly clear then becoming partly cloudy late this evening then becoming mostly clear. Lows in the mid 40s to lower 50s. Northwest Winds around 5 Mph shifting to the northeast late this evening and overnight.

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  • Temperature Real-Time

Upper Klamath National Wildlife Refuge Temperature Statistics

September Temperature

Klamath Falls International Airport (31.1 miles)

  • Lowest 7 September, 2026

    31.6 °F

  • Average September

    54.3 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Klamath Falls International Airport (31.1 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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