Chehalis Weather Forecast

    • 32
    • 52

    Becoming Sunny

    • 33
    • 54

    Mostly Cloudy

    • 41
    • 54

    Rain

    • 39
    • 54

    Rain

    • 34
    • 53

    Rain

    • 33
    • 53

    Chance Rain

    • 34
    • 57

    Partly Sunny

Today 21 Mar Lowlands of Lewis and Southern Thurston Counties

Mostly sunny. Highs near 50. Light wind.

Tonight 21 Mar Lowlands of Lewis and Southern Thurston Counties

Partly cloudy in the evening then becoming clear. Lows in the lower to mid 30s. West wind to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Chehalis Temperature Statistics

March Temperature

Chehalis-Centralia Airport (1.2 miles)

  • Lowest 2 March, 2026

    30.2 °F

  • Average March

    45.9 °F

  • Highest 16 March, 2026

    66.2 °F

Climate (2021–Present)

Chehalis-Centralia Airport (1.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    61.3 °F
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