Boise Weather Forecast

    • 55
    • 76

    Rain Showers Likely

    • 47
    • 68

    Slight Chance Rain Showers

    • 46
    • 67

    Mostly Sunny

    • 49
    • 72

    Sunny

    • 52
    • 78

    Sunny

    • 53
    • 81

    Sunny

Today 25 Sep Upper Treasure Valley

Mostly sunny. Highs 75 to 82. Breezy. Southeast Winds up to 10 Mph in the Morning, increasing to northwest 10 to 20 Mph with Gusts to 30 Mph in the afternoon.

Tonight 25 Sep Upper Treasure Valley

Mostly cloudy with a 30 percent chance of Showers. Lows 51 to 56. Breezy. Northwest Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boise Temperature Statistics

September Temperature

Boise Air Terminal (3.1 miles)

  • Lowest 9 September, 2020

    46.9 °F
  • Average September

    70.1 °F
  • Highest 4 September, 2020

    100 °F

Climate (2010–Present)

Boise Air Terminal (3.1 miles)

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  • Average Low 2010–Present

    44.1 °F
  • Average 2010–Present

    54.5 °F
  • Average High 2010–Present

    65.3 °F
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