Chehalis Weather Forecast

    • 50
    • 88

    Increasing Clouds

    • 49
    • 74

    Partly Sunny

    • 54
    • 85

    Mostly Sunny

    • 59
    • 95

    Mostly Sunny

    • 57
    • 96

    Partly Sunny

    • 52
    • 87

    Mostly Sunny

Today 19 Jun Lowlands of Lewis and Southern Thurston Counties

Sunny. Highs in the mid to upper 80s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 19 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows near 50. West wind 10 to 15 Mph becoming south after midnight. Gusts to 25 Mph.

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Chehalis Temperature Statistics

June Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 1 June, 2026

    41 °F

  • Average June

    60.6 °F

  • Highest 15 June, 2026

    91.4 °F

Climate (2021–2026)

Chehalis-Centralia Airport (1.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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