Chehalis Weather Forecast

    • 37
    • 63

    Becoming Sunny

    • 41
    • 69

    Mostly Sunny

    • 45
    • 71

    Partly Sunny

    • 42
    • 55

    Chance Rain

    • 40
    • 55

    Chance Rain

    • 38
    • 57

    Mostly Cloudy

Today 8 Apr Lowlands of Lewis and Southern Thurston Counties

Sunny. Areas of frost in the morning. Highs in the lower to mid 60s. Light wind.

Tonight 8 Apr Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows in the mid to upper 30s. Light wind.

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Chehalis Temperature Statistics

April Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 3 April, 2026

    35.6 °F

  • Average April

    49.4 °F

  • Highest 5 April, 2026

    69.8 °F

Climate (2021–Present)

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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