Chehalis Weather Forecast

    • 33
    • 54

    Rain Likely

    • 30
    • 54

    Chance Rain

    • 31
    • 55

    Mostly Cloudy

    • 31
    • 56

    Partly Sunny

    • 34
    • 56

    Mostly Cloudy

    • 33
    • 58

    Partly Sunny

Today 29 Oct Lowlands of Lewis and Southern Thurston Counties

Partly sunny. A chance of rain in the Morning, then a slight chance of rain Showers late in the morning. A chance of rain Showers in the afternoon. Highs in the lower to mid 50s. South wind to 10 Mph.

Tonight 29 Oct Lowlands of Lewis and Southern Thurston Counties

Partly cloudy with a chance of rain Showers in the Evening, then partly cloudy with a slight chance of rain Showers after midnight. Lows in the 30s. Light wind.

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Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 24 October, 2026

    32 °F

  • Average October

    53.3 °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 °F

  • Average High 2021–2026

    61.4 °F
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