New Plymouth Weather Forecast

    • 43
    • 73

    Decreasing Clouds

    • 37
    • 74

    Mostly Sunny

    • 38
    • 66

    Partly Sunny

    • 41
    • 69

    Partly Sunny

    • 46
    • 72

    Slight Chance Rain Showers

    • 44
    • 70

    Chance Rain Showers

Today 6 Apr Lower Treasure Valley

Mostly sunny. Highs 70 to 75. Light Winds.

Tonight 6 Apr Lower Treasure Valley

Mostly clear. Lows 43 to 48. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Plymouth Temperature Statistics

April Temperature

Ontario Municipal Airport (9.3 miles)

  • Lowest 4 April, 2026

    28.9 °F

  • Average April

    45.8 °F

  • Highest 4 April, 2026

    64.9 °F

Climate (2021–Present)

Ontario Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    67.2 °F
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