Nampa Municipal Airport Weather Forecast

    • 46
    • 75

    Increasing Clouds

    • 47
    • 79

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 55
    • 88

    Mostly Sunny

    • 48
    • 89

    Partly Sunny

    • 44
    • 69

    Chance Rain Showers

    • 46
    • 70

    Slight Chance Rain Showers

Today 21 May Lower Treasure Valley

Sunny. Highs 74 to 79. Northwest Winds 10 to 15 Mph.

Tonight 21 May Lower Treasure Valley

Increasing Clouds. Lows 45 to 50. Northwest Winds up to 10 Mph with Gusts to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nampa Municipal Airport Temperature Statistics

May Temperature

Nampa Municipal Airport (0 miles)

  • Lowest 19 May, 2026

    39.2 °F

  • Average May

    64.2 °F

  • Highest 12 May, 2026

    96.8 °F

Climate (2021–Present)

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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