Big Trinity Lake Weather Forecast

    • 46
    • 72

    Patchy Smoke

    • 46
    • 73

    Mostly Sunny

    • 45
    • 70

    Sunny

    • 48
    • 74

    Sunny

    • 50
    • 74

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

Today 7 Jul Boise Mountains

Sunny. Patchy smoke this afternoon. Highs 79 to 94.

Tonight 7 Jul Boise Mountains

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Patchy smoke. Thunderstorms may produce gusty Winds in the evening. Chance of rain 20 percent. Lows 48 to 63.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Trinity Lake Temperature Statistics

July Temperature

Boise Air Terminal (40.4 miles)

  • Lowest 2 July, 2026

    52.6 °F

  • Average July

    74.3 °F

  • Highest 4 July, 2026

    97 °F

Climate (2021–2026)

Boise Air Terminal (40.4 miles)

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

  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.2 °F
Get WillyWeather+ to remove ads