Walton Lake Weather Forecast

    • 33
    • 55

    Becoming Sunny

    • 39
    • 61

    Mostly Sunny

    • 41
    • 63

    Mostly Sunny

    • 42
    • 67

    Mostly Sunny

    • 43
    • 69

    Mostly Sunny

    • 41
    • 70

    Mostly Sunny

Today 18 May Ochoco-John Day Highlands

Mostly cloudy in the morning then clearing. Highs in the upper 50s to mid 60s. Gusts up to 20 Mph in the afternoon.

Tonight 18 May Ochoco-John Day Highlands

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

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Walton Lake Temperature Statistics

May Temperature

Prineville Airport (29.8 miles)

  • Lowest 14 May, 2026

    26.6 °F

  • Average May

    59.2 °F

  • Highest 12 May, 2026

    87.8 °F

Climate (2021–Present)

Prineville Airport (29.8 miles)

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  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    63.2 °F
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