Lewis Weather Forecast

    • 55
    • 94

    Patchy Smoke

    • 48
    • 87

    Patchy Smoke

    • 47
    • 82

    Chance Rain Showers

    • 41
    • 74

    Mostly Sunny

    • 45
    • 77

    Mostly Sunny

    • 48
    • 84

    Partly Sunny

Today 26 Aug Wallowa County

Partly cloudy. Highs in the upper 70s to upper 80s, except in the lower to mid 90s Valleys. South wind 5 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 26 Aug Wallowa County

Mostly cloudy. Patchy smoke through the night. Lows in the lower 50s to lower 60s. Gusts up to 30 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis Temperature Statistics

August Temperature

Grangeville - Idaho County Airport (49.1 miles)

  • Lowest 4 August, 2026

    42.8 °F

  • Average August

    69.6 °F

  • Highest 21 August, 2026

    96.8 °F

Climate (2021–2026)

Grangeville - Idaho County Airport (49.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    57.9 °F
Get WillyWeather+ to remove ads