New West Side Weather Forecast

    • 52
    • 72

    Decreasing Clouds

    • 56
    • 84

    Mostly Sunny

    • 61
    • 93

    Mostly Sunny

    • 59
    • 97

    Hot

    • 55
    • 88

    Mostly Sunny

    • 55
    • 78

    Chance Rain

    • 55
    • 69

    Chance Rain

Today 20 Jun Cowlitz County Lowlands

Sunny. Highs in the lower 70s. West wind 5 to 10 Mph.

Tonight 20 Jun Cowlitz County Lowlands

Mostly clear this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows around 50. West wind 5 to 10 Mph.

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New West Side Temperature Statistics

June Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 1 June, 2026

    44.1 °F

  • Average June

    62.8 °F

  • Highest 14 June, 2026

    93 °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

    62.6 °F
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