Nampa Municipal Airport Weather Forecast

    • 58
    • 91

    Slight Chance Thunderstorms

    • 59
    • 93

    Partly Sunny

    • 58
    • 92

    Mostly Cloudy

    • 57
    • 88

    Partly Sunny

    • 58
    • 88

    Mostly Sunny

    • 59
    • 89

    Partly Sunny

Today 15 Aug Lower Treasure Valley

Partly cloudy. Isolated Showers this Morning, then scattered Showers and Thunderstorms this afternoon. Thunderstorms may produce gusty Winds this afternoon. Chance of rain 30 percent. Highs 88 to 93. Southeast Winds up to 10 Mph.

Tonight 15 Aug Lower Treasure Valley

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Areas of fog after midnight. Thunderstorms may produce gusty Winds in the evening. Chance of rain 20 percent. Lows 57 to 62. Southeast Winds up to 10 Mph.

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Nampa Municipal Airport Temperature Statistics

August Temperature

Nampa Municipal Airport (0 miles)

  • Lowest 5 August, 2026

    50 °F

  • Average August

    77.2 °F

  • Highest 1 August, 2026

    100.4 °F

Climate (2021–2026)

Nampa Municipal Airport (0 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    65.2 °F
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