Boise Weather Forecast

    • 48
    • 67

    Chance Rain Showers

    • 52
    • 75

    Partly Sunny

    • 50
    • 71

    Partly Sunny

    • 44
    • 74

    Chance Rain Showers

    • 47
    • 69

    Chance Rain Showers

    • 40
    • 64

    Chance Rain Showers

    • 41
    • 57

    Chance Rain Showers

Today 22 Sep Upper Treasure Valley

Sunny. Highs 74 to 79. Southeast Winds 10 to 15 Mph.

Tonight 22 Sep Upper Treasure Valley

Mostly cloudy with a 40 percent chance of Showers. Lows 47 to 52. East Winds up to 10 Mph in the Evening, shifting to northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boise Temperature Statistics

September Temperature

Boise Air Terminal (3.1 miles)

  • Lowest 19 September, 2019

    46.9 °F

  • Average September

    69.1 °F

  • Highest 5 September, 2019

    97 °F

Climate (2010–Present)

Boise Air Terminal (3.1 miles)

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  • Average Low 2010–Present

    44 °F

  • Average 2010–Present

    54.6 °F

  • Average High 2010–Present

    65.2 °F
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