Threemile Reservoir Weather Forecast

    • 41
    • 62

    Rain Showers Likely

    • 40
    • 57

    Rain Showers

    • 31
    • 54

    Snow Showers

    • 26
    • 43

    Snow Showers

    • 31
    • 54

    Mostly Sunny

    • 37
    • 64

    Mostly Sunny

Today 30 Mar Harney County

Partly cloudy with isolated rain Showers this Morning, then mostly cloudy with scattered rain Showers this afternoon. Chance of rain 30 percent. Highs 49 to 59. Breezy. Northwest Winds 10 to 20 Mph. Gusts to 20 Mph this Morning, increasing to 30 Mph this afternoon.

Tonight 30 Mar Harney County

Rain and snow Showers likely. Chance of precipitation 60 percent. Little or no snow accumulation. Lows 29 to 39. Northeast Winds 10 to 15 Mph. Gusts to 25 Mph in the evening.

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Threemile Reservoir Temperature Statistics

March Temperature

Rome (53.4 miles)

  • Lowest 10 March, 2026

    20.6 °F

  • Average March

    48.9 °F

  • Highest 20 March, 2026

    85.6 °F

Climate (2021–Present)

Rome (53.4 miles)

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  • Average Low 2021–2026

    36.8 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    66.1 °F
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