Grindstone Reservoir Weather Forecast

    • 52
    • 88

    Areas Smoke

    • 50
    • 87

    Patchy Smoke

    • 45
    • 85

    Partly Sunny

    • 43
    • 83

    Partly Sunny

    • 40
    • 77

    Mostly Sunny

    • 43
    • 79

    Mostly Sunny

    • 42
    • 81

    Partly Sunny

Today 25 Aug Ochoco-John Day Highlands

Partly cloudy. Highs in the mid 80s to lower 90s. South wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 25 Aug Ochoco-John Day Highlands

Partly cloudy. Patchy smoke in the evening. Smoke overnight. Lows in the upper 40s to upper 50s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grindstone Reservoir Temperature Statistics

August Temperature

Burns Municipal Airport (46 miles)

  • Lowest 4 August, 2026

    38.6 °F

  • Average August

    69.7 °F

  • Highest 5 August, 2026

    98.7 °F

Climate (2021–2026)

Burns Municipal Airport (46 miles)

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  • Average Low 2021–2026

    32 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    62.6 °F
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