Boise City Weather Forecast

    • 42
    • 66

    Sunny

    • 45
    • 71

    Sunny

    • 50
    • 76

    Mostly Sunny

    • 53
    • 80

    Mostly Sunny

    • 48
    • 77

    Chance Rain Showers

    • 41
    • 64

    Chance Rain Showers

Today 6 Oct Upper Treasure Valley

Areas of frost this morning. Sunny. Highs 62 to 67. Light Winds.

Tonight 6 Oct Upper Treasure Valley

Mostly clear. Lows 35 to 44. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boise City Temperature Statistics

October Temperature

Boise Air Terminal (6.2 miles)

  • Lowest 4 October, 2025

    48.9 °F
  • Average October

    59.7 °F
  • Highest 1 October, 2025

    73 °F

Climate (2020–Present)

Boise Air Terminal (6.2 miles)

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  • Average Low 2020–2025

    43.8 °F
  • Average 2020–2025

    54.5 °F
  • Average High 2020–2025

    65.8 °F
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