Collins Reservoir Weather Forecast

    • 56
    • 81

    Patchy Smoke

    • 57
    • 82

    Patchy Smoke

    • 54
    • 82

    Mostly Sunny

    • 55
    • 82

    Mostly Sunny

    • 58
    • 85

    Partly Sunny

    • 54
    • 83

    Partly Sunny

Today 16 Aug Ochoco-John Day Highlands

Partly cloudy in the morning then clearing. Patchy smoke. Highs in the lower to mid 80s.

Tonight 16 Aug Ochoco-John Day Highlands

Mostly cloudy. Patchy smoke through the night. Lows in the upper 40s to mid 50s.

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Collins Reservoir Temperature Statistics

August Temperature

Prineville Airport (47.8 miles)

  • Lowest 3 August, 2026

    39.2 °F

  • Average August

    68.6 °F

  • Highest 6 August, 2026

    96.8 °F

Climate (2021–2026)

Prineville Airport (47.8 miles)

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  • Average Low 2021–2026

    34.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    63 °F
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