Lake Waha Weather Forecast

    • 45
    • 61

    Becoming Sunny

    • 48
    • 64

    Partly Sunny

    • 51
    • 69

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

    • 53
    • 73

    Partly Sunny

    • 43
    • 66

    Chance Rain Showers

Today 20 May Lewis and Southern Nez Perce Counties

Mostly cloudy in the Morning, becoming partly cloudy. Highs in the 60s. Northwest wind 5 to 15 Mph in the afternoon.

Tonight 20 May Lewis and Southern Nez Perce Counties

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the upper 30s to mid 40s. Gusts up to 25 Mph in the evening. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Waha Temperature Statistics

May Temperature

Grangeville - Idaho County Airport (37.9 miles)

  • Lowest 18 May, 2026

    30.2 °F

  • Average May

    53.1 °F

  • Highest 12 May, 2026

    80.6 °F

Climate (2021–Present)

Grangeville - Idaho County Airport (37.9 miles)

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  • Average Low 2021–2026

    37.1 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    58 °F
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