Chehalis Weather Forecast

    • 51
    • 78

    Increasing Clouds

    • 50
    • 73

    Mostly Cloudy

    • 47
    • 72

    Partly Sunny

    • 48
    • 78

    Mostly Sunny

    • 50
    • 83

    Mostly Sunny

    • 51
    • 82

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

Today 9 Jul Lowlands of Lewis and Southern Thurston Counties

Partly sunny in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 9 Jul Lowlands of Lewis and Southern Thurston Counties

Mostly clear until early morning then becoming mostly cloudy. Lows near 50. West wind to 10 Mph becoming southwest after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chehalis Temperature Statistics

July Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 5 July, 2026

    50 °F

  • Average July

    62.3 °F

  • Highest 6 July, 2026

    86 °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 °F

  • Average High 2021–2026

    61.3 °F
Get WillyWeather+ to remove ads