Smith Reservoir Weather Forecast

    • 35
    • 60

    Sunny

    • 39
    • 70

    Sunny

    • 41
    • 74

    Mostly Sunny

    • 41
    • 70

    Slight Chance Thunderstorms

    • 42
    • 72

    Mostly Sunny

    • 43
    • 75

    Mostly Sunny

Today 13 Sep Klamath Basin

Areas of frost early this morning. Mostly cloudy with a slight chance of rain early this Morning, then partly cloudy in the late morning and afternoon. Highs in the mid 50s to lower 60s. Southwest Winds 5 to 10 Mph shifting to the northwest late this afternoon.

Tonight 13 Sep Klamath Basin

Clear. Widespread frost after midnight. Lows in the lower 30s to lower 40s. North Winds 5 to 10 Mph.

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Smith Reservoir Temperature Statistics

September Temperature

Klamath Falls International Airport (19.9 miles)

  • Lowest 7 September, 2026

    31.6 °F

  • Average September

    54.5 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Klamath Falls International Airport (19.9 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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