Chehalis Weather Forecast

    • 50
    • 79

    Decreasing Clouds

    • 56
    • 84

    Partly Sunny

    • 51
    • 87

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 53
    • 85

    Mostly Sunny

    • 58
    • 93

    Mostly Sunny

Today 17 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly sunny. Highs in the mid to upper 70s. Light wind.

Tonight 17 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows near 50. Northwest wind to 10 Mph with Gusts to 20 Mph in the evening becoming light.

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Chehalis Temperature Statistics

June Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 1 June, 2026

    41 °F

  • Average June

    60.4 °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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