New West Side Weather Forecast

    • 42
    • 66

    Slight Chance Rain

    • 44
    • 64

    Mostly Cloudy

    • 42
    • 62

    Mostly Cloudy

    • 41
    • 65

    Mostly Sunny

    • 43
    • 70

    Partly Sunny

    • 44
    • 63

    Chance Rain

    • 41
    • 61

    Partly Sunny

Today 17 Oct Cowlitz County Lowlands

Mostly sunny. Highs in the mid 60s. Winds light.

Tonight 17 Oct Cowlitz County Lowlands

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 40s. Winds light.

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New West Side Temperature Statistics

October Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 11 October, 2026

    36 °F

  • Average October

    57.2 °F

  • Highest 4 October, 2026

    79 °F

Climate (2021–2026)

Southwest Washington Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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