Nampa Municipal Airport Weather Forecast

    • 44
    • 68

    Increasing Clouds

    • 46
    • 71

    Mostly Cloudy

    • 43
    • 75

    Sunny

    • 47
    • 76

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 46
    • 77

    Mostly Sunny

Today 26 Sep Lower Treasure Valley

Partly sunny. Cooler with Highs 66 to 71. Northwest Winds up to 10 Mph.

Tonight 26 Sep Lower Treasure Valley

Mostly cloudy. Lows 42 to 47. Northwest Winds up to 10 Mph.

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Nampa Municipal Airport Temperature Statistics

September Temperature

Nampa Municipal Airport (0 miles)

  • Lowest 15 September, 2026

    42.8 °F

  • Average September

    64.8 °F

  • Highest 24 September, 2026

    93.2 °F

Climate (2021–2026)

Nampa Municipal Airport (0 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    65.3 °F
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