Melba Weather Forecast

    • 41
    • 68

    Increasing Clouds

    • 44
    • 72

    Mostly Sunny

    • 47
    • 76

    Mostly Sunny

    • 50
    • 79

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

    • 52
    • 86

    Mostly Sunny

Today 18 May Lower Treasure Valley

Sunny. Highs 66 to 71. Breezy. Northwest Winds 10 to 20 Mph with Gusts to 30 Mph.

Tonight 18 May Lower Treasure Valley

Partly cloudy. Lows 39 to 44. Northwest Winds 10 to 15 Mph. Gusts to 25 Mph in the evening.

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Melba Temperature Statistics

May Temperature

Nampa Municipal Airport (13.7 miles)

  • Lowest 1 May, 2026

    41 °F

  • Average May

    66.6 °F

  • Highest 12 May, 2026

    96.8 °F

Climate (2021–Present)

Nampa Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    65.3 °F
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