Grouse Flat State Wildlife Recreation Area Weather Forecast

    • 57
    • 81

    Mostly Sunny

    • 58
    • 77

    Partly Sunny

    • 58
    • 79

    Chance Rain Showers

    • 60
    • 82

    Rain Showers Likely

    • 61
    • 84

    Chance Rain Showers

    • 61
    • 83

    Chance Rain Showers

Today 12 Aug Northeast Blue Mountains

Sunny, haze. Areas of smoke in the afternoon. Highs in the upper 70s to upper 80s. North wind 5 to 15 Mph in the afternoon.

Tonight 12 Aug Northeast Blue Mountains

Mostly clear. Areas of smoke. Lows in the upper 50s to lower 60s. Gusts up to 20 Mph in the evening.

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Grouse Flat State Wildlife Recreation Area Temperature Statistics

August Temperature

Lewiston, Lewiston-Nez Perce County Airport (33.6 miles)

  • Lowest 3 August, 2026

    54.6 °F

  • Average August

    76 °F

  • Highest 7 August, 2026

    99.6 °F

Climate (2021–2026)

Lewiston, Lewiston-Nez Perce County Airport (33.6 miles)

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.9 °F
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