Smith Reservoir Weather Forecast

    • 48
    • 77

    Slight Chance Thunderstorms

    • 38
    • 68

    Slight Chance Thunderstorms

    • 47
    • 75

    Sunny

    • 49
    • 82

    Sunny

    • 44
    • 80

    Mostly Sunny

    • 44
    • 77

    Mostly Sunny

Today 13 Sep Klamath Basin

Sunny until early afternoon then becoming partly cloudy. Highs in the lower 70s to lower 80s. Southeast Winds around 5 Mph shifting to the southwest this afternoon.

Tonight 13 Sep Klamath Basin

Mostly cloudy. Chance of Showers and slight chance of Thunderstorms in the Evening, then slight chance of Thunderstorms after midnight. Lows in the lower 40s to lower 50s. West Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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Smith Reservoir Temperature Statistics

September Temperature

Klamath Falls International Airport (19.9 miles)

  • Lowest 8 September, 2025

    43 °F

  • Average September

    62.6 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Klamath Falls International Airport (19.9 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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