Lake Waha Weather Forecast

    • 51
    • 62

    Becoming Sunny

    • 58
    • 74

    Sunny

    • 58
    • 78

    Sunny

    • 58
    • 73

    Partly Sunny

    • 58
    • 75

    Partly Sunny

    • 58
    • 76

    Partly Sunny

Today 15 Sep Lewis and Southern Nez Perce Counties

Patchy fog in the morning. Mostly cloudy with a chance of rain Showers in the Morning, then partly cloudy in the afternoon. Highs in the lower 60s to lower 70s. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 15 Sep Lewis and Southern Nez Perce Counties

Mostly clear. Lows in the mid 40s to lower 50s.

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  • Temperature Real-Time

Lake Waha Temperature Statistics

September Temperature

Grangeville - Idaho County Airport (37.9 miles)

  • Lowest 11 September, 2025

    46.4 °F

  • Average September

    67.8 °F

  • Highest 2 September, 2025

    98.6 °F

Climate (2020–Present)

Grangeville - Idaho County Airport (37.9 miles)

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  • Average Low 2020–2025

    36.6 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    57.6 °F
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