Nampa Weather Forecast

    • 19
    • 34

    Increasing Clouds

    • 17
    • 33

    Mostly Sunny

    • 16
    • 31

    Partly Sunny

    • 17
    • 31

    Mostly Cloudy

    • 18
    • 34

    Mostly Sunny

    • 21
    • 35

    Partly Sunny

Today 18 Jan Lower Treasure Valley

Mostly sunny. Highs 33 to 38. Northwest Winds up to 10 Mph.

Tonight 18 Jan Lower Treasure Valley

Partly cloudy. Lows 17 to 22. Light Winds.

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Nampa Temperature Statistics

January Temperature

Nampa Municipal Airport (3.1 miles)

  • Lowest 14 January, 2025

    21.2 °F

  • Average January

    34.4 °F

  • Highest 5 January, 2025

    48.2 °F

Climate (2020–Present)

Nampa Municipal Airport (3.1 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    64.9 °F
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