Chehalis Weather Forecast

    • 41
    • 56

    Rain Likely

    • 39
    • 59

    Chance Rain

    • 38
    • 58

    Rain

    • 34
    • 54

    Rain

    • 32
    • 54

    Rain

    • 31
    • 55

    Slight Chance Rain

Today 25 Oct Lowlands of Lewis and Southern Thurston Counties

Rain in the Morning, then rain likely early in the afternoon. A chance of rain late in the afternoon. Rainfall Amounts a half inch to one inch possible. Highs in the 50s. South wind to 10 Mph becoming southeast around 10 Mph in the afternoon. Gusts to 20 Mph.

Tonight 25 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy with a chance of rain in the Evening, then mostly cloudy with rain likely after midnight. Rainfall Amounts less than a tenth of an inch likely. Lows near 40. Southeast wind to 10 Mph with Gusts to 20 Mph.

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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 °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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