Grindstone Reservoir Weather Forecast

    • 38
    • 61

    Increasing Clouds

    • 41
    • 69

    Mostly Cloudy

    • 42
    • 71

    Mostly Cloudy

    • 34
    • 64

    Rain/Snow

    • 28
    • 46

    Rain/Snow

    • 30
    • 47

    Chance Snow

Today 18 Apr Ochoco-John Day Highlands

Mostly cloudy in the Morning, becoming partly cloudy. Highs in the upper 50s to upper 60s. South wind 5 to 15 Mph in the afternoon. Gusts up to 25 Mph.

Tonight 18 Apr Ochoco-John Day Highlands

Partly cloudy. Lows in the mid 30s to lower 40s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grindstone Reservoir Temperature Statistics

April Temperature

Burns Municipal Airport (46 miles)

  • Lowest 3 April, 2026

    19.7 °F

  • Average April

    44.1 °F

  • Highest 6 April, 2026

    73.7 °F

Climate (2021–Present)

Burns Municipal Airport (46 miles)

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  • Average Low 2021–2026

    32.4 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    62.6 °F
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