Caldwell Weather Forecast

    • 39
    • 62

    Mostly Cloudy

    • 39
    • 62

    Decreasing Clouds

    • 41
    • 70

    Mostly Sunny

    • 43
    • 73

    Mostly Sunny

    • 45
    • 75

    Mostly Sunny

    • 47
    • 80

    Mostly Sunny

    • 47
    • 82

    Mostly Sunny

Today 16 May Lower Treasure Valley

Mostly sunny. Cooler with Highs 59 to 64. Breezy. Northwest Winds 10 to 20 Mph with Gusts to 30 Mph.

Tonight 16 May Lower Treasure Valley

Patchy blowing dust this evening. Mostly cloudy. Lows 35 to 41. Breezy. Northwest Winds 10 to 20 Mph with Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Caldwell Temperature Statistics

May Temperature

Caldwell - Caldwell Industrial Airport (3.1 miles)

  • Lowest 1 May, 2026

    42.1 °F

  • Average May

    66.2 °F

  • Highest 12 May, 2026

    93 °F

Climate (2021–Present)

Caldwell - Caldwell Industrial Airport (3.1 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    65.5 °F
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