Captain Jack Lake Weather Forecast

    • 55
    • 76

    Mostly Cloudy

    • 55
    • 71

    Slight Chance Thunderstorms

    • 51
    • 70

    Slight Chance Thunderstorms

    • 47
    • 68

    Sunny

    • 54
    • 75

    Mostly Sunny

    • 55
    • 75

    Chance Rain Showers

Today 18 Sep Klamath Basin

Sunny early this morning then becoming partly cloudy. Highs in the lower to mid 80s. North Winds around 5 Mph shifting to the south late this afternoon.

Tonight 18 Sep Klamath Basin

Mostly cloudy. Lows in the mid 40s to lower 50s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Captain Jack Lake Temperature Statistics

September Temperature

Klamath Falls International Airport (19.3 miles)

  • Lowest 15 September, 2025

    37 °F

  • Average September

    61.2 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Klamath Falls International Airport (19.3 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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