Chehalis Weather Forecast

    • 57
    • 96

    Becoming Sunny

    • 49
    • 75

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 56
    • 86

    Partly Sunny

    • 54
    • 86

    Mostly Sunny

    • 53
    • 80

    Mostly Sunny

Today 15 Jun Lowlands of Lewis and Southern Thurston Counties

Partly sunny. Highs in the 90s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 15 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows in the 50s. West wind to 10 Mph becoming south after midnight. Gusts to 20 Mph.

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Chehalis Temperature Statistics

June Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 1 June, 2026

    41 °F

  • Average June

    58.6 °F

  • Highest 2 June, 2026

    87.8 °F

Climate (2021–Present)

Chehalis-Centralia Airport (1.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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