Chehalis Weather Forecast

    • 48
    • 66

    Rain Likely

    • 49
    • 66

    Rain Showers Likely

    • 50
    • 65

    Slight Chance Rain

    • 50
    • 67

    Mostly Cloudy

    • 49
    • 65

    Mostly Cloudy

    • 46
    • 65

    Mostly Cloudy

    • 47
    • 68

    Chance Rain

Today 26 Jun Lowlands of Lewis and Southern Thurston Counties

Rain likely in the Morning, then Showers likely and a slight chance of Thunderstorms in the afternoon. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Highs in the 60s. South wind around 10 Mph becoming southwest in the afternoon.

Tonight 26 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. A chance of rain in the Evening, then a slight chance of rain after midnight. A chance of rain late in the night. Lows in the mid to upper 40s. West wind to 10 Mph with Gusts to 20 Mph becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chehalis Temperature Statistics

June Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 1 June, 2026

    41 °F

  • Average June

    62.4 °F

  • Highest 15 June, 2026

    91.4 °F

Climate (2021–2026)

Chehalis-Centralia Airport (1.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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