Montour Weather Forecast
- 54
- 88
Increasing Clouds
- 51
- 86
Partly Sunny
- 53
- 88
Mostly Sunny
- 55
- 94
Partly Sunny
- 48
- 83
Slight Chance Rain Showers
- 46
- 78
Partly Sunny
Today 21 Sep Lower Treasure Valley
Sunny. Highs 81 to 86. Southeast Winds 10 to 15 Mph with Gusts to 25 Mph.
Tonight 21 Sep Lower Treasure Valley
Increasing Clouds. Lows 52 to 57. Light Winds.
Montour Temperature Statistics
September Temperature
Caldwell - Caldwell Industrial Airport (24.2 miles)
Lowest 15 September, 2026
44.1 °FAverage September
63.8 °FHighest 12 September, 2026
88 °F
Climate (2021–2026)
Caldwell - Caldwell Industrial Airport (24.2 miles)
Average Low 2021–2026
42 °FAverage 2021–2026
53.4 °FAverage High 2021–2026
65.3 °F