Klamath Falls Weather Forecast

    • 45
    • 78

    Sunny

    • 49
    • 85

    Sunny

    • 52
    • 86

    Mostly Sunny

    • 54
    • 86

    Partly Sunny

    • 53
    • 81

    Mostly Cloudy

    • 51
    • 81

    Slight Chance Rain Showers

Today 15 Sep Klamath Basin

Sunny. Highs in the lower to mid 70s. Northeast Winds around 5 Mph.

Tonight 15 Sep Klamath Basin

Clear. Lows in the mid 30s to mid 40s. Northeast Winds around 5 Mph.

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Klamath Falls Temperature Statistics

September Temperature

Klamath Falls International Airport (5.6 miles)

  • Lowest 12 September, 2025

    41 °F

  • Average September

    61.9 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Klamath Falls International Airport (5.6 miles)

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  • Average Low 2020–2025

    33.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    63.1 °F
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