Chehalis Weather Forecast

    • 47
    • 72

    Mostly Sunny

    • 50
    • 74

    Increasing Clouds

    • 42
    • 63

    Rain Likely

    • 39
    • 60

    Chance Rain

    • 38
    • 63

    Mostly Sunny

    • 40
    • 64

    Mostly Sunny

    • 42
    • 65

    Slight Chance Rain

Today 7 Oct Lowlands of Lewis and Southern Thurston Counties

Partly sunny. A slight chance of rain in the morning. Highs in the lower 60s.

Tonight 7 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows in the mid to upper 40s. North wind to 10 Mph in the evening becoming light. Gusts to 20 Mph.

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  • Temperature Real-Time

Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 1 October, 2026

    46.4 °F

  • Average October

    58.2 °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 °F

  • Average High 2021–2026

    61.3 °F
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