New West Side Weather Forecast

    • 52
    • 81

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 48
    • 74

    Partly Sunny

    • 49
    • 71

    Mostly Cloudy

    • 47
    • 59

    Rain Likely

    • 49
    • 66

    Chance Rain

Today 21 May Cowlitz County Lowlands

Sunny. Highs in the lower 80s. North wind 5 to 10 Mph.

Tonight 21 May Cowlitz County Lowlands

Mostly clear. Lows in the upper 40s. Winds light.

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New West Side Temperature Statistics

May Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 17 May, 2026

    39.9 °F

  • Average May

    59 °F

  • Highest 3 May, 2026

    91 °F

Climate (2021–Present)

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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