Chehalis Weather Forecast

    • 50
    • 65

    Slight Chance Rain Showers

    • 50
    • 66

    Mostly Cloudy

    • 49
    • 65

    Mostly Cloudy

    • 47
    • 65

    Slight Chance Rain

    • 47
    • 66

    Chance Rain

    • 47
    • 70

    Chance Rain

Today 28 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Patchy fog in the morning. A slight chance of Showers in the late morning and early afternoon. Highs in the 60s. Southwest wind to 10 Mph becoming west with Gusts to 20 Mph in the afternoon.

Tonight 28 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. A slight chance of Showers after midnight. Patchy fog in the morning. Lows near 50. West wind to 10 Mph becoming southwest 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

    62.2 °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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