New Plymouth Weather Forecast

    • 54
    • 89

    Mostly Sunny

    • 52
    • 92

    Slight Chance Thunderstorms

    • 45
    • 68

    Chance Rain Showers

    • 48
    • 73

    Chance Rain Showers

    • 50
    • 80

    Chance Thunderstorms

    • 49
    • 73

    Chance Rain Showers

    • 49
    • 77

    Partly Sunny

Today 24 May Lower Treasure Valley

Sunny. Highs 86 to 91. Northwest Winds up to 10 Mph.

Tonight 24 May Lower Treasure Valley

Mostly clear. Lows 54 to 59. East Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

New Plymouth Temperature Statistics

May Temperature

Ontario Municipal Airport (9.3 miles)

  • Lowest 1 May, 2026

    36.6 °F

  • Average May

    63 °F

  • Highest 12 May, 2026

    91.7 °F

Climate (2021–Present)

Ontario Municipal Airport (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    67.3 °F
Get WillyWeather+ to remove ads