Lake Waha Weather Forecast

    • 69
    • 89

    Increasing Clouds

    • 72
    • 93

    Mostly Cloudy

    • 61
    • 88

    Chance Rain Showers

    • 57
    • 77

    Mostly Sunny

    • 62
    • 82

    Mostly Sunny

    • 64
    • 84

    Mostly Sunny

Today 20 Aug Lewis and Southern Nez Perce Counties

Hot, sunny. Highs in the upper 80s to upper 90s.

Tonight 20 Aug Lewis and Southern Nez Perce Counties

Mostly cloudy. Lows in the upper 50s to upper 60s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Waha Temperature Statistics

August Temperature

Grangeville - Idaho County Airport (37.9 miles)

  • Lowest 4 August, 2026

    42.8 °F

  • Average August

    68.4 °F

  • Highest 6 August, 2026

    91.4 °F

Climate (2021–2026)

Grangeville - Idaho County Airport (37.9 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    57.8 °F
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