Boise Weather Forecast

    • 61
    • 91

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 56
    • 83

    Rain Showers Likely

    • 55
    • 76

    Slight Chance Thunderstorms

    • 59
    • 82

    Partly Sunny

    • 59
    • 85

    Mostly Sunny

    • 58
    • 88

    Mostly Sunny

Today 15 Sep Oldham

Mostly sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph.

Tonight 15 Sep Oldham

Mostly clear. Lows in the upper 50s. South Winds 5 to 10 Mph.

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Boise Temperature Statistics

September Temperature

Hereford Municipal Airport (38.5 miles)

  • Lowest 6 September, 2025

    54.5 °F

  • Average September

    74 °F

  • Highest 4 September, 2025

    98.8 °F

Climate (2020–Present)

Hereford Municipal Airport (38.5 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    59.9 °F

  • Average High 2020–2025

    75.3 °F
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