Big Trinity Lake Weather Forecast

    • 29
    • 42

    Mostly Sunny

    • 30
    • 48

    Partly Sunny

    • 27
    • 47

    Partly Sunny

    • 26
    • 43

    Snow Showers

    • 24
    • 33

    Chance Snow Showers

    • 21
    • 33

    Chance Snow Showers

Today 10 Nov Boise Mountains

Decreasing Clouds. A chance of rain and snow Showers. Areas of fog in the morning. Patchy fog in the afternoon. Chance of precipitation 40 percent. Highs 37 to 50.

Tonight 10 Nov Boise Mountains

Partly cloudy this Evening, then clearing. Patchy fog. Lows 27 to 42.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Trinity Lake Temperature Statistics

November Temperature

Boise Air Terminal (40.4 miles)

  • Lowest 2 November, 2026

    34.6 °F

  • Average November

    48.4 °F

  • Highest 7 November, 2026

    66.9 °F

Climate (2021–2026)

Boise Air Terminal (40.4 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    66.4 °F
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