Threemile Reservoir Weather Forecast

    • 24
    • 55

    Rain/Snow

    • 23
    • 42

    Chance Snow Showers

    • 32
    • 52

    Partly Sunny

    • 42
    • 62

    Mostly Cloudy

    • 42
    • 68

    Chance Rain Showers

    • 41
    • 68

    Chance Rain/Snow

    • 38
    • 63

    Chance Rain Showers

Today 15 Apr Harney County

Rain Showers, a chance of snow Showers with a slight chance of Thunderstorms. Chance of precipitation 90 percent. No snow accumulation. Highs 49 to 55. Temperature falling into the upper 40s this afternoon. Windy. West Winds 20 to 30 Mph with Gusts to 45 Mph.

Tonight 15 Apr Harney County

Rain and snow Showers this Evening, then partly cloudy with a chance of snow Showers after midnight. Chance of precipitation 80 percent. Snow accumulation up to 1 inch. Much Colder with Lows 18 to 26. Windy. West Winds 20 to 30 Mph with Gusts to 40 Mph this Evening, decreasing to 10 to 20 Mph with Gusts to 30 Mph after midnight.

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Threemile Reservoir Temperature Statistics

April Temperature

Rome (53.4 miles)

  • Lowest 3 April, 2026

    19.7 °F

  • Average April

    48.2 °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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