Grindstone Reservoir Weather Forecast

    • 57
    • 90

    Partly Sunny

    • 53
    • 90

    Chance Rain Showers

    • 46
    • 83

    Slight Chance Rain Showers

    • 46
    • 78

    Partly Sunny

    • 46
    • 79

    Partly Sunny

    • 47
    • 80

    Mostly Sunny

    • 49
    • 83

    Mostly Sunny

Today 30 Jun Ochoco-John Day Highlands

Sunny. Highs in the upper 80s to lower 90s.

Tonight 30 Jun Ochoco-John Day Highlands

Mostly clear in the Evening, becoming mostly cloudy. Lows in the mid 50s to lower 60s. Gusts up to 20 Mph in the evening.

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Grindstone Reservoir Temperature Statistics

June Temperature

Burns Municipal Airport (46 miles)

  • Lowest 2 June, 2025

    30.8 °F

  • Average June

    62.8 °F

  • Highest 9 June, 2025

    92.6 °F

Climate (2020–Present)

Burns Municipal Airport (46 miles)

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  • Average Low 2020–2025

    32 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    62.3 °F
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