Big Rainbow Lake Weather Forecast

    • 22
    • 43

    Sunny

    • 20
    • 40

    Partly Sunny

    • 21
    • 36

    Partly Sunny

    • 24
    • 39

    Snow Likely

    • 15
    • 28

    Chance Snow

    • 12
    • 26

    Chance Snow

Today 5 Feb Boise Mountains

Sunny. Highs 48 to 60.

Tonight 5 Feb Boise Mountains

Mostly clear. Lows 26 to 37.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Rainbow Lake Temperature Statistics

February Temperature

Boise Air Terminal (41 miles)

  • Lowest 2 February, 2026

    26.1 °F

  • Average February

    38.9 °F

  • Highest 3 February, 2026

    54 °F

Climate (2021–Present)

Boise Air Terminal (41 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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