Chehalis Weather Forecast

    • 46
    • 63

    Mostly Cloudy

    • 45
    • 67

    Mostly Cloudy

    • 46
    • 73

    Mostly Sunny

    • 50
    • 76

    Mostly Cloudy

    • 42
    • 64

    Slight Chance Rain

    • 45
    • 63

    Rain Likely

Today 13 Oct Lowlands of Lewis and Southern Thurston Counties

Partly sunny. Highs in the lower to mid 60s. Light wind.

Tonight 13 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Lows in the 40s. Light wind.

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  • Temperature Real-Time

Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 10 October, 2026

    41 °F

  • Average October

    57.3 °F

  • Highest 4 October, 2026

    73.4 °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

    61.3 °F
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