Walton Lake Weather Forecast

    • 40
    • 65

    Becoming Sunny

    • 44
    • 67

    Mostly Cloudy

    • 44
    • 73

    Rain Showers Likely

    • 32
    • 52

    Chance Rain Showers

    • 35
    • 52

    Mostly Cloudy

    • 35
    • 54

    Partly Sunny

    • 36
    • 55

    Partly Sunny

Today 22 Sep Ochoco-John Day Highlands

Partly cloudy. Highs in the upper 60s to mid 70s.

Tonight 22 Sep Ochoco-John Day Highlands

Mostly clear. Lows in the mid 30s to lower 40s. Gusts up to 20 Mph in the evening.

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Walton Lake Temperature Statistics

September Temperature

Prineville Airport (29.8 miles)

  • Lowest 14 September, 2026

    32 °F

  • Average September

    56.2 °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

    62.9 °F
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