Nampa Weather Forecast

    • 45
    • 77

    Sunny

    • 49
    • 79

    Mostly Sunny

    • 50
    • 81

    Partly Sunny

    • 34
    • 70

    Partly Sunny

    • 36
    • 63

    Mostly Cloudy

    • 42
    • 63

    Mostly Cloudy

Today 18 Mar Lower Treasure Valley

Increasing Clouds. Highs 73 to 78. Light Winds.

Tonight 18 Mar Lower Treasure Valley

Mostly clear. Lows 43 to 49. Light Winds.

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Nampa Temperature Statistics

March Temperature

Nampa Municipal Airport (3.1 miles)

  • Lowest 11 March, 2026

    26.6 °F

  • Average March

    45.8 °F

  • Highest 8 March, 2026

    66.2 °F

Climate (2021–Present)

Nampa Municipal Airport (3.1 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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