Threemile Reservoir Weather Forecast

    • 41
    • 65

    Increasing Clouds

    • 45
    • 70

    Mostly Cloudy

    • 46
    • 75

    Partly Sunny

    • 37
    • 67

    Rain/Snow Likely

    • 33
    • 51

    Rain/Snow

    • 34
    • 53

    Chance Rain/Snow

    • 36
    • 57

    Chance Rain/Snow

Today 18 Apr Harney County

Mostly sunny. Warmer with Highs 59 to 65. Southeast Winds 10 to 15 Mph.

Tonight 18 Apr Harney County

Partly cloudy. Lows 31 to 38. East Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Threemile Reservoir Temperature Statistics

April Temperature

Rome (53.4 miles)

  • Lowest 3 April, 2026

    19.7 °F

  • Average April

    47.2 °F

  • Highest 6 April, 2026

    76.6 °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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