Horse Heaven Reservoir Weather Forecast

    • 40
    • 65

    Increasing Clouds

    • 41
    • 61

    Rain Showers

    • 34
    • 63

    Chance Rain Showers

    • 36
    • 66

    Mostly Sunny

    • 40
    • 75

    Sunny

    • 43
    • 78

    Sunny

Today 7 Jun Ochoco-John Day Highlands

Sunny. Highs in the upper 50s to mid 60s.

Tonight 7 Jun Ochoco-John Day Highlands

Mostly cloudy. Lows in the mid 30s to lower 40s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Horse Heaven Reservoir Temperature Statistics

June Temperature

Prineville Airport (23 miles)

  • Lowest 4 June, 2026

    33.8 °F

  • Average June

    61.3 °F

  • Highest 2 June, 2026

    82.4 °F

Climate (2021–Present)

Prineville Airport (23 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    63.2 °F
Get WillyWeather+ to remove ads