Weiser Weather Forecast
- 61
- 88
Becoming Sunny
- 63
- 93
Sunny
- 65
- 97
Hot
- 67
- 97
Hot
- 64
- 96
Mostly Sunny
- 66
- 95
Mostly Sunny
Today 22 Jul Lower Treasure Valley
Partly cloudy. A slight chance of Showers in the afternoon. Chance of rain 20 percent. Highs 83 to 88. Northwest Winds up to 10 Mph.
Tonight 22 Jul Lower Treasure Valley
Decreasing Clouds. Lows 58 to 63. Northwest Winds up to 10 Mph.
Weiser Temperature Statistics
July Temperature
Ontario Municipal Airport (16.2 miles)
Lowest 5 July, 2025
50.6 °FAverage July
80 °FHighest 1 July, 2025
104.6 °F
Climate (2020–Present)
Ontario Municipal Airport (16.2 miles)
Average Low 2020–2025
42.5 °FAverage 2020–2025
54.6 °FAverage High 2020–2025
67.1 °F