Barnes Butte Reservoir Weather Forecast

    • 33
    • 55

    Rain

    • 23
    • 46

    Chance Rain/Snow

    • 26
    • 44

    Mostly Cloudy

    • 29
    • 51

    Rain Likely

    • 26
    • 47

    Slight Chance Rain/Snow

    • 27
    • 45

    Chance Snow

    • 25
    • 46

    Slight Chance Rain/Snow

Today 18 Dec Central Oregon

Rain and high mountain snow in the Morning, then rain in the afternoon. Little or no high mountain snow accumulation. Highs in the lower to mid 50s. Windy. South wind 5 to 10 Mph with Gusts to around 25 Mph increasing to southwest 20 to 30 Mph with Gusts to around 50 Mph in the afternoon. Chance of precipitation near 100 percent.

Tonight 18 Dec Central Oregon

Rain. Lows in the mid to upper 30s. Very windy. Southwest wind 20 to 35 Mph. Gusts up to 60 Mph decreasing to 50 Mph overnight. Chance of precipitation near 100 percent. Rainfall Amounts over an inch possible.

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Barnes Butte Reservoir Temperature Statistics

December Temperature

Prineville Airport (5 miles)

  • Lowest 1 December, 2025

    17.6 °F

  • Average December

    43.3 °F

  • Highest 15 December, 2025

    66.2 °F

Climate (2020–Present)

Prineville Airport (5 miles)

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  • Average Low 2020–2025

    34.4 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    62.9 °F
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