Chehalis Weather Forecast

    • 39
    • 64

    Decreasing Clouds

    • 37
    • 66

    Mostly Sunny

    • 38
    • 68

    Mostly Sunny

    • 40
    • 69

    Partly Sunny

    • 41
    • 67

    Partly Sunny

    • 42
    • 69

    Mostly Sunny

Today 23 Apr Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy in the morning then becoming mostly sunny. Highs in the lower to mid 60s. Light wind.

Tonight 23 Apr Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows near 40. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chehalis Temperature Statistics

April Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 16 April, 2026

    32 °F

  • Average April

    50.2 °F

  • Highest 19 April, 2026

    77 °F

Climate (2021–Present)

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 °F

  • Average High 2021–2026

    61.3 °F
Get WillyWeather+ to remove ads