Chehalis Weather Forecast

    • 36
    • 64

    Slight Chance Rain

    • 38
    • 62

    Mostly Cloudy

    • 35
    • 60

    Mostly Cloudy

    • 34
    • 61

    Partly Sunny

    • 36
    • 65

    Partly Sunny

    • 37
    • 60

    Slight Chance Rain

Today 17 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy with a slight chance of Showers in the Morning, then mostly sunny in the afternoon. Highs in the lower to mid 60s. Southwest wind to 10 Mph becoming northwest in the afternoon.

Tonight 17 Oct Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Patchy fog in the morning. Lows in the 30s. Light wind.

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

    55.5 °F

  • Highest 4 October, 2026

    73.4 °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