Big Trinity Lake Weather Forecast
- 28
- 40
Blizzard
- 8
- 32
Blizzard
- 19
- 27
Mostly Cloudy
- 29
- 42
Partly Sunny
- 35
- 51
Partly Sunny
- 37
- 55
Partly Sunny
Today 13 Mar Boise Mountains
Partly cloudy. A chance of rain and snow this morning. Chance of precipitation 30 percent. Highs 44 to 58.
Tonight 13 Mar Boise Mountains
Rain and Snow, mainly after midnight. Chance of precipitation 90 percent. Snow accumulation up to 1 inch. Lows 29 to 43.
Big Trinity Lake Temperature Statistics
March Temperature
Boise Air Terminal (40.4 miles)
Lowest 11 March, 2026
30 °FAverage March
45 °FHighest 8 March, 2026
64.9 °F
Climate (2021–Present)
Boise Air Terminal (40.4 miles)
Average Low 2021–2026
44.1 °FAverage 2021–2026
54.9 °FAverage High 2021–2026
66.1 °F