Big Trinity Lake Weather Forecast

    • 19
    • 34

    Becoming Sunny

    • 24
    • 43

    Sunny

    • 27
    • 48

    Mostly Sunny

    • 31
    • 52

    Partly Sunny

    • 28
    • 49

    Partly Sunny

    • 25
    • 42

    Chance Snow Showers

Today 3 Apr Boise Mountains

Areas of fog in the morning. Sunny. Not as cool with Highs 42 to 54.

Tonight 3 Apr Boise Mountains

Mostly clear. Patchy fog after midnight. Lows 17 to 32.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Trinity Lake Temperature Statistics

April Temperature

Boise Air Terminal (40.4 miles)

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  • Average April

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Climate (2021–Present)

Boise Air Terminal (40.4 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    66.2 °F
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