Clarno Weather Forecast

    • 50
    • 82

    Sunny

    • 53
    • 84

    Mostly Sunny

    • 55
    • 88

    Mostly Sunny

    • 55
    • 88

    Mostly Sunny

    • 51
    • 84

    Partly Sunny

    • 52
    • 81

    Partly Sunny

    • 53
    • 85

    Partly Sunny

Today 18 Sep John Day Basin

Partly cloudy. Highs in the 70s.

Tonight 18 Sep John Day Basin

Mostly clear. Lows in the mid 40s to lower 50s. Light wind.

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Clarno Temperature Statistics

September Temperature

Prineville Airport (47.8 miles)

  • Lowest 14 September, 2026

    32 °F

  • Average September

    55.5 °F

  • Highest 9 September, 2026

    86 °F

Climate (2021–2026)

Prineville Airport (47.8 miles)

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  • Average Low 2021–2026

    34.6 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    62.9 °F
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