Chehalis Weather Forecast

    • 31
    • 61

    Increasing Clouds

    • 36
    • 59

    Rain Likely

    • 39
    • 58

    Rain Likely

    • 37
    • 59

    Chance Rain

    • 36
    • 60

    Chance Rain

    • 35
    • 59

    Chance Rain

Today 23 Oct Lowlands of Lewis and Southern Thurston Counties

Sunny. Highs near 60. Light wind.

Tonight 23 Oct Lowlands of Lewis and Southern Thurston Counties

Partly cloudy. Lows in the upper 20s to mid 30s. Light wind.

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Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 11 October, 2026

    35.6 °F

  • Average October

    54.6 °F

  • Highest 16 October, 2026

    80.6 °F

Climate (2021–2026)

Chehalis-Centralia Airport (1.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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