Chehalis Weather Forecast

    • 51
    • 72

    Mostly Cloudy

    • 52
    • 78

    Decreasing Clouds

    • 52
    • 80

    Partly Sunny

    • 53
    • 87

    Mostly Sunny

    • 58
    • 91

    Partly Sunny

    • 58
    • 90

    Partly Sunny

    • 57
    • 90

    Mostly Sunny

Today 16 Jul Lowlands of Lewis and Southern Thurston Counties

Patchy fog in the morning. Showers likely and a slight chance of Thunderstorms through the day. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Highs in the lower to mid 70s. South wind to 10 Mph becoming southwest in the afternoon.

Tonight 16 Jul Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Patchy fog late in the night. Lows near 50. West wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chehalis Temperature Statistics

July Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 9 July, 2026

    46.4 °F

  • Average July

    62.9 °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