Big Trinity Lake Weather Forecast

    • 17
    • 38

    Becoming Sunny

    • 20
    • 34

    Mostly Sunny

    • 22
    • 40

    Mostly Sunny

    • 22
    • 42

    Mostly Sunny

    • 23
    • 44

    Mostly Sunny

    • 22
    • 43

    Partly Sunny

Today 1 Feb Boise Mountains

Partly sunny. Highs 40 to 52.

Tonight 1 Feb Boise Mountains

Partly cloudy in the Evening, then clearing. Patchy fog after midnight. Lows 15 to 30.

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Big Trinity Lake Temperature Statistics

February Temperature

Boise Air Terminal (40.4 miles)

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  • Average February

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Climate (2021–Present)

Boise Air Terminal (40.4 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    66 °F
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