New Plymouth Weather Forecast

    • 62
    • 93

    Mostly Sunny

    • 66
    • 92

    Partly Sunny

    • 61
    • 85

    Mostly Cloudy

    • 61
    • 89

    Mostly Sunny

    • 63
    • 94

    Mostly Sunny

    • 64
    • 97

    Hot

Today 19 Jul Lower Treasure Valley

Sunny. Highs 91 to 96. West Winds 10 to 15 Mph with Gusts to 25 Mph.

Tonight 19 Jul Lower Treasure Valley

Mostly clear. Lows 61 to 66. Northwest Winds 10 to 15 Mph with Gusts to 25 Mph.

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New Plymouth Temperature Statistics

July Temperature

Ontario Municipal Airport (9.3 miles)

  • Lowest 5 July, 2025

    50.6 °F

  • Average July

    79.7 °F

  • Highest 1 July, 2025

    104.6 °F

Climate (2020–Present)

Ontario Municipal Airport (9.3 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    67.1 °F
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