Chehalis Weather Forecast

    • 46
    • 76

    Decreasing Clouds

    • 47
    • 73

    Mostly Cloudy

    • 51
    • 75

    Partly Sunny

    • 51
    • 84

    Mostly Sunny

    • 49
    • 79

    Partly Sunny

    • 47
    • 73

    Partly Sunny

Today 30 Apr Lowlands of Lewis and Southern Thurston Counties

Mostly sunny. Patchy fog in the morning. Highs in the 70s. Light wind.

Tonight 30 Apr Lowlands of Lewis and Southern Thurston Counties

Partly cloudy. Lows in the mid 40s. Light wind.

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Chehalis Temperature Statistics

April Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 16 April, 2026

    32 °F

  • Average April

    50.2 °F

  • Highest 19 April, 2026

    77 °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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