Chehalis Weather Forecast

    • 39
    • 63

    Decreasing Clouds

    • 35
    • 65

    Partly Sunny

    • 37
    • 69

    Partly Sunny

    • 36
    • 60

    Partly Sunny

    • 35
    • 59

    Mostly Cloudy

    • 37
    • 56

    Rain Likely

Today 19 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Patchy fog in the morning. Highs in the lower to mid 60s. Light wind.

Tonight 19 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Areas of fog after midnight. Patchy fog in the morning. Lows in the mid 30s to lower 40s. Light wind. Gusts to 20 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chehalis Temperature Statistics

October Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 11 October, 2026

    35.6 °F

  • Average October

    55.6 °F

  • Highest 16 October, 2026

    80.6 °F

Climate (2021–2026)

Chehalis-Centralia Airport (1.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
Get WillyWeather+ to remove ads