Threemile Reservoir Weather Forecast

    • 58
    • 86

    Mostly Sunny

    • 61
    • 92

    Mostly Sunny

    • 58
    • 94

    Mostly Sunny

    • 55
    • 86

    Slight Chance Thunderstorms

    • 54
    • 84

    Sunny

    • 59
    • 89

    Sunny

    • 60
    • 94

    Sunny

Today 6 Jul Harney County

Sunny. Highs 78 to 88. Light Winds.

Tonight 6 Jul Harney County

Mostly clear. Lows 48 to 58. North Winds up to 10 Mph.

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Threemile Reservoir Temperature Statistics

July Temperature

Rome (53.4 miles)

  • Lowest 4 July, 2025

    57 °F
  • Average July

    75.7 °F
  • Highest 1 July, 2025

    99 °F

Climate (2020–Present)

Rome (53.4 miles)

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  • Average Low 2020–2025

    36.5 °F
  • Average 2020–2025

    51.4 °F
  • Average High 2020–2025

    65.9 °F
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