Horse Heaven Reservoir Weather Forecast

    • 32
    • 61

    Patchy Freezing Fog

    • 28
    • 63

    Mostly Sunny

    • 40
    • 69

    Rain

    • 29
    • 54

    Chance Rain

    • 29
    • 53

    Partly Sunny

    • 30
    • 58

    Partly Sunny

Today 16 Oct Ochoco-John Day Highlands

Sunny. Patchy freezing fog in the morning. Highs in the mid 50s to lower 60s.

Tonight 16 Oct Ochoco-John Day Highlands

Mostly cloudy. Lows in the upper 20s to upper 30s.

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Horse Heaven Reservoir Temperature Statistics

October Temperature

Prineville Airport (23 miles)

  • Lowest 6 October, 2025

    26.6 °F

  • Average October

    49.1 °F

  • Highest 7 October, 2025

    77 °F

Climate (2020–Present)

Prineville Airport (23 miles)

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  • Average Low 2020–2025

    34.3 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    62.7 °F
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