Nampa Municipal Airport Weather Forecast

    • 46
    • 79

    Mostly Sunny

    • 46
    • 80

    Mostly Sunny

    • 48
    • 83

    Mostly Sunny

    • 53
    • 83

    Mostly Sunny

    • 55
    • 84

    Partly Sunny

    • 53
    • 84

    Mostly Sunny

Today 30 Sep Lower Treasure Valley

Sunny. Highs 76 to 81. Northwest Winds 10 to 15 Mph.

Tonight 30 Sep Lower Treasure Valley

Mostly clear. Areas of fog after midnight. Lows 46 to 51. 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

    64.4 °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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