Lower Granite State Airport Weather Forecast

    • 57
    • 83

    Becoming Sunny

    • 58
    • 89

    Becoming Sunny

    • 58
    • 91

    Mostly Sunny

    • 57
    • 86

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 51
    • 75

    Mostly Cloudy

Today 19 Sep Washington Palouse

Partly cloudy. Highs in the mid to upper 60s.

Tonight 19 Sep Washington Palouse

Mostly clear. Lows in the upper 40s to lower 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lower Granite State Airport Temperature Statistics

September Temperature

Lewiston, Lewiston-Nez Perce County Airport (28.6 miles)

  • Lowest 5 September, 2026

    49.6 °F

  • Average September

    64.2 °F

  • Highest 10 September, 2026

    88.6 °F

Climate (2021–2026)

Lewiston, Lewiston-Nez Perce County Airport (28.6 miles)

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

  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.9 °F
Get WillyWeather+ to remove ads