Lake Waha Weather Forecast

    • 50
    • 66

    Mostly Sunny

    • 49
    • 68

    Rain Showers Likely

    • 49
    • 67

    Partly Sunny

    • 48
    • 71

    Mostly Sunny

    • 56
    • 75

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

Today 16 Sep Lewis and Southern Nez Perce Counties

Partly cloudy. Highs in the mid 60s to lower 70s.

Tonight 16 Sep Lewis and Southern Nez Perce Counties

Clear. Lows in the upper 40s to lower 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Waha Temperature Statistics

September Temperature

Grangeville - Idaho County Airport (37.9 miles)

  • Lowest 5 September, 2026

    41 °F

  • Average September

    56 °F

  • Highest 10 September, 2026

    84.2 °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

    57.9 °F
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