Big Trinity Lake Weather Forecast

    • 21
    • 37

    Rain/Snow

    • 10
    • 26

    Chance Snow

    • 19
    • 28

    Snow Likely

    • 13
    • 31

    Chance Snow

    • 13
    • 30

    Partly Sunny

    • 17
    • 30

    Chance Snow

Today 8 Feb Boise Mountains

Rain and snow this Morning, then rain this afternoon. Chance of precipitation 80 percent. No snow accumulation across the lower Elevations, with snow accumulation up to 2 Inches over the Mountains. Highs 39 to 53.

Tonight 8 Feb Boise Mountains

Rain, snow. Areas of fog. Chance of precipitation 90 percent. No snow accumulation across the lower Elevations, with snow accumulation up to 5 Inches over the Mountains. Lows 22 to 36.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Trinity Lake Temperature Statistics

February Temperature

Boise Air Terminal (40.4 miles)

  • Lowest 2 February, 2026

    26.7 °F

  • Average February

    41.3 °F

  • Highest 5 February, 2026

    55.9 °F

Climate (2021–Present)

Boise Air Terminal (40.4 miles)

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

  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    66 °F
Get WillyWeather+ to remove ads