Chehalis Weather Forecast

    • 51
    • 70

    Dense Fog

    • 50
    • 74

    Becoming Sunny

    • 51
    • 77

    Partly Sunny

    • 51
    • 72

    Mostly Cloudy

    • 47
    • 70

    Partly Sunny

    • 47
    • 71

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

Today 2 Oct Lowlands of Lewis and Southern Thurston Counties

Partly sunny. Highs in the mid to upper 60s.

Tonight 2 Oct Lowlands of Lewis and Southern Thurston Counties

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Light wind.

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Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

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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

    61.3 °F
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