Lake Waha Weather Forecast

    • 44
    • 57

    Rain Showers

    • 46
    • 63

    Increasing Clouds

    • 49
    • 64

    Mostly Cloudy

    • 50
    • 67

    Mostly Sunny

    • 52
    • 70

    Chance Rain Showers

    • 52
    • 71

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 13 Sep Lewis and Southern Nez Perce Counties

Rain Showers likely and a chance of Thunderstorms. Highs in the mid 50s to mid 60s. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 13 Sep Lewis and Southern Nez Perce Counties

A chance of Thunderstorms in the evening. Rain Showers. Lows in the 40s. Chance of precipitation near 100 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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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

    56.6 °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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