Upper Klamath National Wildlife Refuge Weather Forecast

    • 52
    • 78

    Sunny

    • 56
    • 84

    Sunny

    • 59
    • 89

    Mostly Sunny

    • 60
    • 88

    Mostly Sunny

    • 59
    • 87

    Slight Chance Thunderstorms

    • 57
    • 84

    Slight Chance Rain Showers

Today 20 Aug Siskiyou Mountains and Southern Oregon Cascades

Sunny. Highs in the lower 70s to lower 80s. North Winds around 5 Mph shifting to the west this afternoon.

Tonight 20 Aug Siskiyou Mountains and Southern Oregon Cascades

Clear. Lows in the lower to mid 50s. Northwest Winds 5 to 10 Mph shifting to the northeast well after midnight.

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Upper Klamath National Wildlife Refuge Temperature Statistics

August Temperature

Klamath Falls International Airport (31.1 miles)

  • Lowest 8 August, 2025

    39.7 °F

  • Average August

    65.7 °F

  • Highest 11 August, 2025

    95.6 °F

Climate (2020–Present)

Klamath Falls International Airport (31.1 miles)

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  • Average Low 2020–2025

    33.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    63.2 °F
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