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.
New Plymouth Temperature Statistics
July Temperature
Ontario Municipal Airport (9.3 miles)
Lowest 5 July, 2025
50.6 °FAverage July
79.7 °FHighest 1 July, 2025
104.6 °F
Climate (2020–Present)
Ontario Municipal Airport (9.3 miles)
Average Low 2020–2025
42.5 °FAverage 2020–2025
54.6 °FAverage High 2020–2025
67.1 °F