Mays Reservoir Weather Forecast

    • 31
    • 46

    Decreasing Clouds

    • 32
    • 51

    Mostly Sunny

    • 35
    • 58

    Mostly Sunny

    • 40
    • 61

    Partly Sunny

    • 39
    • 61

    Mostly Sunny

    • 46
    • 67

    Rain Showers Likely

    • 37
    • 57

    Rain Showers Likely

Today 13 Oct John Day Basin

Mostly cloudy. Rain Showers likely in the Morning, then a chance of rain Showers in the afternoon. Highs in the upper 40s to lower 50s. Light Wind, becoming north 5 to 15 Mph with Gusts to around 25 Mph in the afternoon. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 13 Oct John Day Basin

Mostly cloudy. Patchy frost overnight. Lows in the lower 30s. North wind 5 to 15 Mph. Gusts up to 25 Mph in the evening.

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Mays Reservoir Temperature Statistics

October Temperature

Prineville Airport (37.3 miles)

  • Lowest 6 October, 2025

    26.6 °F

  • Average October

    51 °F

  • Highest 7 October, 2025

    77 °F

Climate (2020–Present)

Prineville Airport (37.3 miles)

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  • Average Low 2020–2025

    34.2 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    62.8 °F
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