New West Side Weather Forecast

    • 47
    • 65

    Increasing Clouds

    • 46
    • 68

    Mostly Sunny

    • 52
    • 69

    Mostly Cloudy

    • 52
    • 64

    Chance Rain

    • 50
    • 66

    Mostly Cloudy

    • 49
    • 65

    Mostly Cloudy

Today 26 Sep Cowlitz County Lowlands

Patchy fog this morning. Mostly sunny. Highs in the mid 60s. Winds Light, becoming north 5 to 10 Mph this afternoon.

Tonight 26 Sep Cowlitz County Lowlands

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 40s. North wind 5 to 10 Mph.

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 24 September, 2026

    46.9 °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