Soulen Reservoir Weather Forecast

    • 57
    • 79

    Mostly Sunny

    • 58
    • 79

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 46
    • 72

    Mostly Sunny

    • 49
    • 71

    Mostly Sunny

    • 53
    • 77

    Partly Sunny

Today 18 Sep Upper Weiser River

Sunny. Highs 79 to 86. West Winds up to 10 Mph.

Tonight 18 Sep Upper Weiser River

Increasing Clouds. Lows 56 to 61. Light Winds.

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Soulen Reservoir Temperature Statistics

September Temperature

Ontario Municipal Airport (26.7 miles)

  • Lowest 16 September, 2025

    46 °F

  • Average September

    69.8 °F

  • Highest 4 September, 2025

    98.1 °F

Climate (2020–Present)

Ontario Municipal Airport (26.7 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    67.1 °F
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