Rainbow Lake Weather Forecast

    • 43
    • 60

    Mostly Cloudy

    • 47
    • 64

    Mostly Sunny

    • 51
    • 69

    Mostly Sunny

    • 54
    • 74

    Mostly Cloudy

    • 54
    • 73

    Mostly Cloudy

    • 56
    • 77

    Mostly Sunny

Today 28 Apr Northwest Blue Mountains

Partly cloudy in the Morning, becoming mostly cloudy. Highs in the 50s. Southwest wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 28 Apr Northwest Blue Mountains

Mostly cloudy. Lows in the mid 30s to lower 40s. Gusts up to 20 Mph in the evening.

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Rainbow Lake Temperature Statistics

April Temperature

Lewiston, Lewiston-Nez Perce County Airport (31.1 miles)

  • Lowest 18 April, 2026

    34.6 °F

  • Average April

    52.4 °F

  • Highest 6 April, 2026

    75.7 °F

Climate (2021–Present)

Lewiston, Lewiston-Nez Perce County Airport (31.1 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    66.1 °F
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