Caldwell Weather Forecast

    • 23
    • 30

    Cloudy

    • 23
    • 29

    Cloudy

    • 23
    • 29

    Partly Sunny

    • 21
    • 31

    Mostly Sunny

    • 21
    • 30

    Partly Sunny

    • 25
    • 31

    Mostly Cloudy

    • 27
    • 33

    Mostly Cloudy

Today 20 Jan Lower Treasure Valley

Cloudy. Patchy fog this morning. Areas of fog this afternoon. Highs 28 to 33. Light Winds.

Tonight 20 Jan Lower Treasure Valley

Cloudy. Areas of fog. Lows 21 to 26. Light Winds.

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Caldwell Temperature Statistics

January Temperature

Caldwell - Caldwell Industrial Airport (3.1 miles)

  • Lowest 13 January, 2026

    23 °F

  • Average January

    35.7 °F

  • Highest 3 January, 2026

    57.9 °F

Climate (2021–Present)

Caldwell - Caldwell Industrial Airport (3.1 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    65.3 °F
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