Nampa Municipal Airport Weather Forecast

    • 50
    • 80

    Mostly Sunny

    • 52
    • 84

    Chance Rain Showers

    • 43
    • 66

    Mostly Sunny

    • 44
    • 68

    Mostly Sunny

    • 45
    • 72

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

Today 11 Sep Lower Treasure Valley

Sunny. Highs 78 to 83. Northwest Winds up to 10 Mph with Gusts to 20 Mph.

Tonight 11 Sep Lower Treasure Valley

Mostly clear. Lows 50 to 55. East Winds up to 10 Mph.

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Nampa Municipal Airport Temperature Statistics

September Temperature

Nampa Municipal Airport (0 miles)

  • Lowest 8 September, 2026

    44.6 °F

  • Average September

    61.9 °F

  • Highest 1 September, 2026

    84.2 °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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