Chehalis Weather Forecast

    • 39
    • 57

    Rain

    • 35
    • 55

    Rain

    • 32
    • 53

    Rain

    • 34
    • 54

    Chance Rain

    • 34
    • 56

    Chance Rain

    • 29
    • 56

    Partly Sunny

Today 27 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. A chance of Showers until late Afternoon, then a slight chance of Showers late in the afternoon. Highs in the 50s. Light wind becoming west 10 to 15 Mph in the afternoon.

Tonight 27 Oct Lowlands of Lewis and Southern Thurston Counties

A chance of Showers in the Evening, then Showers in the late evening and early morning. Showers likely in the morning. Rainfall Amounts a quarter to a half inch possible. Lows near 40. Southwest wind to 10 Mph becoming south after midnight. Gusts to 25 Mph.

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Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 24 October, 2026

    32 °F

  • Average October

    53.5 °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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