Walton Lake Weather Forecast

    • 34
    • 49

    Gradual Clearing

    • 39
    • 61

    Mostly Sunny

    • 38
    • 62

    Mostly Cloudy

    • 39
    • 59

    Partly Sunny

    • 44
    • 67

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

    • 46
    • 73

    Mostly Sunny

Today 13 Sep Ochoco-John Day Highlands

Mostly cloudy with a 20 percent chance of rain Showers. Highs in the 50s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 13 Sep Ochoco-John Day Highlands

Partly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the upper 20s to upper 30s. West wind 5 to 15 Mph in the Evening, becoming light. Gusts up to 25 Mph.

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Walton Lake Temperature Statistics

September Temperature

Prineville Airport (29.8 miles)

  • Lowest 5 September, 2026

    35.6 °F

  • Average September

    56.8 °F

  • Highest 9 September, 2026

    86 °F

Climate (2021–2026)

Prineville Airport (29.8 miles)

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  • Average Low 2021–2026

    34.6 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    63 °F
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