Arrowrock Reservoir Weather Forecast

    • 62
    • 92

    Increasing Clouds

    • 59
    • 88

    Rain Showers Likely

    • 54
    • 77

    Rain Showers Likely

    • 56
    • 81

    Sunny

    • 58
    • 88

    Sunny

    • 61
    • 91

    Sunny

Today 2 Jul Boise Mountains

Mostly sunny. Highs 82 to 96.

Tonight 2 Jul Boise Mountains

A slight chance of Thunderstorms in the evening. Mostly cloudy with a slight chance of Showers. Chance of rain 20 percent. Lows 48 to 63.

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Arrowrock Reservoir Temperature Statistics

July Temperature

Boise Air Terminal (19.3 miles)

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  • Average July

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Climate (2020–Present)

Boise Air Terminal (19.3 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    65.7 °F
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