New West Side Weather Forecast

    • 35
    • 57

    Mostly Cloudy

    • 44
    • 56

    Rain

    • 41
    • 54

    Rain

    • 35
    • 51

    Rain

    • 34
    • 55

    Partly Sunny

    • 37
    • 62

    Partly Sunny

Today 22 Mar Cowlitz County Lowlands

Mostly sunny. Highs in the upper 50s. North wind 5 to 10 Mph.

Tonight 22 Mar Cowlitz County Lowlands

Mostly cloudy in the Evening, then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. North wind 5 to 10 Mph.

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New West Side Temperature Statistics

March Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    47.6 °F

  • Highest 16 March, 2026

    66 °F

Climate (2021–Present)

Southwest Washington Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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