Nampa Municipal Airport Weather Forecast

    • 49
    • 71

    Partly Sunny

    • 48
    • 74

    Rain Showers

    • 42
    • 67

    Chance Rain Showers

    • 46
    • 73

    Partly Sunny

    • 51
    • 78

    Areas Fog

    • 54
    • 82

    Chance Rain Showers

Today 5 Sep Lower Treasure Valley

Areas of fog this morning. Sunny. Highs 70 to 75. Northwest Winds up to 10 Mph.

Tonight 5 Sep Lower Treasure Valley

Partly cloudy. Areas of fog. A slight chance of Showers after midnight. Chance of rain 20 percent. Lows 47 to 52. Northwest Winds up to 10 Mph.

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Nampa Municipal Airport Temperature Statistics

September Temperature

Nampa Municipal Airport (0 miles)

  • Lowest 3 September, 2026

    48.2 °F

  • Average September

    66.9 °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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