Threemile Reservoir Weather Forecast

    • 59
    • 90

    Increasing Clouds

    • 58
    • 92

    Mostly Cloudy

    • 56
    • 89

    Partly Sunny

    • 53
    • 86

    Partly Sunny

    • 49
    • 82

    Mostly Sunny

    • 50
    • 80

    Mostly Sunny

Today 25 Aug Harney County

Mostly sunny. Highs 82 to 92. South Winds 10 to 15 Mph. Gusts to 25 Mph this afternoon.

Tonight 25 Aug Harney County

Increasing Clouds. Lows 49 to 60. Southwest Winds 10 to 15 Mph. Gusts to 25 Mph in the evening.

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Threemile Reservoir Temperature Statistics

August Temperature

Rome (53.4 miles)

  • Lowest 3 August, 2026

    42.7 °F

  • Average August

    75.4 °F

  • Highest 6 August, 2026

    103.6 °F

Climate (2021–2026)

Rome (53.4 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    66.2 °F
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