Peterson Creek Reservoir Weather Forecast

    • 38
    • 62

    Decreasing Clouds

    • 42
    • 70

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

    • 44
    • 78

    Mostly Sunny

    • 38
    • 69

    Partly Sunny

    • 35
    • 61

    Slight Chance Rain Showers

Today 7 Sep Ochoco-John Day Highlands

Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs in the lower to mid 60s.

Tonight 7 Sep Ochoco-John Day Highlands

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

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  • Temperature Real-Time

Peterson Creek Reservoir Temperature Statistics

September Temperature

Prineville Airport (37.3 miles)

  • Lowest 5 September, 2026

    35.6 °F

  • Average September

    53.8 °F

  • Highest 1 September, 2026

    80.6 °F

Climate (2021–2026)

Prineville Airport (37.3 miles)

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  • Average Low 2021–2026

    34.6 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    63 °F
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