Lake Waha Weather Forecast

    • 60
    • 79

    Mostly Sunny

    • 60
    • 82

    Sunny

    • 63
    • 87

    Sunny

    • 68
    • 90

    Partly Sunny

    • 66
    • 89

    Partly Sunny

    • 67
    • 89

    Mostly Sunny

Today 20 Aug Lewis and Southern Nez Perce Counties

Sunny. Highs in the upper 70s to upper 80s. Northwest wind 5 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 20 Aug Lewis and Southern Nez Perce Counties

Mostly clear. Lows in the lower 50s to lower 60s. Northwest wind 5 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.

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Lake Waha Temperature Statistics

August Temperature

Grangeville - Idaho County Airport (37.9 miles)

  • Lowest 5 August, 2025

    46.4 °F

  • Average August

    67.7 °F

  • Highest 12 August, 2025

    93.2 °F

Climate (2020–Present)

Grangeville - Idaho County Airport (37.9 miles)

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  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    57.5 °F
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