Horse Heaven Reservoir Weather Forecast

    • 13
    • 34

    Mostly Sunny

    • 10
    • 36

    Mostly Sunny

    • 18
    • 35

    Mostly Sunny

    • 21
    • 41

    Partly Sunny

    • 21
    • 42

    Partly Sunny

    • 25
    • 42

    Partly Sunny

Today 18 Jan Ochoco-John Day Highlands

Mostly sunny. Highs in the lower to mid 30s.

Tonight 18 Jan Ochoco-John Day Highlands

Mostly clear. Lows 8 to 17.

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Horse Heaven Reservoir Temperature Statistics

January Temperature

Prineville Airport (23 miles)

  • Lowest 12 January, 2025

    19.4 °F

  • Average January

    34.8 °F

  • Highest 15 January, 2025

    57.2 °F

Climate (2020–Present)

Prineville Airport (23 miles)

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  • Average Low 2020–2025

    34 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    62.6 °F
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