New West Side Weather Forecast

    • 55
    • 83

    Increasing Clouds

    • 52
    • 73

    Partly Sunny

    • 53
    • 76

    Partly Sunny

    • 54
    • 77

    Partly Sunny

    • 54
    • 74

    Partly Sunny

    • 53
    • 72

    Partly Sunny

Today 17 Sep Cowlitz County Lowlands

Sunny. Highs in the lower 80s. Winds light.

Tonight 17 Sep Cowlitz County Lowlands

Mostly clear. Lows in the lower 50s. Winds light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

New West Side Temperature Statistics

September Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 4 September, 2026

    48 °F

  • Average September

    60.9 °F

  • Highest 9 September, 2026

    86 °F

Climate (2021–2026)

Southwest Washington Regional Airport (2.5 miles)

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

  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.4 °F
Get WillyWeather+ to remove ads