Boise Weather Forecast

    • 63
    • 94

    Thunderstorms

    • 64
    • 90

    Isolated Thunderstorms

    • 62
    • 92

    Mostly Sunny

    • 62
    • 92

    Partly Sunny

    • 58
    • 85

    Partly Sunny

    • 61
    • 88

    Mostly Sunny

Today 31 Jul Upper Treasure Valley

Partly cloudy. Scattered Showers and Thunderstorms this afternoon. Thunderstorms may produce damaging Winds this afternoon. Chance of rain 30 percent. Highs 91 to 96. West Winds 10 to 15 Mph. Gusts to 25 Mph this afternoon.

Tonight 31 Jul Upper Treasure Valley

Mostly cloudy with scattered Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Thunderstorms may produce gusty Winds in the evening. Chance of rain 30 percent. Lows 58 to 64. West Winds 10 to 15 Mph. Gusts to 25 Mph in the evening.

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Boise Temperature Statistics

July Temperature

Boise Air Terminal (3.1 miles)

  • Lowest 5 July, 2025

    54.6 °F

  • Average July

    79.1 °F

  • Highest 8 July, 2025

    104.6 °F

Climate (2020–Present)

Boise Air Terminal (3.1 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    65.8 °F
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