Lake Waha Weather Forecast

    • 52
    • 67

    Increasing Clouds

    • 47
    • 61

    Partly Sunny

    • 51
    • 65

    Partly Sunny

    • 48
    • 67

    Partly Sunny

    • 52
    • 67

    Mostly Sunny

    • 53
    • 70

    Partly Sunny

Today 29 Sep Lewis and Southern Nez Perce Counties

Sunny. Highs in the mid 60s to mid 70s. Northwest wind 5 to 15 Mph in the afternoon. Gusts up to 25 Mph.

Tonight 29 Sep Lewis and Southern Nez Perce Counties

Partly cloudy. Lows in the mid 40s to mid 50s. Gusts up to 25 Mph.

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Lake Waha Temperature Statistics

September Temperature

Grangeville - Idaho County Airport (37.9 miles)

  • Lowest 15 September, 2026

    37.4 °F

  • Average September

    56.3 °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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