Big Trinity Lake Weather Forecast

    • 8
    • 23

    Chance Snow

    • 12
    • 26

    Blustery

    • 21
    • 33

    Partly Sunny

    • 26
    • 42

    Partly Sunny

    • 14
    • 38

    Chance Snow

    • 13
    • 24

    Chance Snow

Today 5 Mar Boise Mountains

Decreasing Clouds. Patchy fog this morning. Snow likely this Morning, then a chance of rain and snow this afternoon. Chance of precipitation 60 percent. New snow accumulation up to 1 inch. Cooler with Highs 30 to 45. Breezy.

Tonight 5 Mar Boise Mountains

Partly cloudy with a chance of snow in the Evening, then mostly clear after midnight. Patchy fog after midnight. Chance of snow 30 percent. Lows 11 to 26. Brisk.

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  • Temperature Real-Time

Big Trinity Lake Temperature Statistics

March Temperature

Boise Air Terminal (40.4 miles)

  • Lowest 3 March, 2026

    36 °F

  • Average March

    46.9 °F

  • Highest 3 March, 2026

    60.1 °F

Climate (2021–Present)

Boise Air Terminal (40.4 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.1 °F
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