Chehalis River - Montesano Weather Forecast

    • 39
    • 58

    Becoming Sunny

    • 35
    • 62

    Sunny

    • 40
    • 64

    Mostly Sunny

    • 49
    • 62

    Chance Rain

    • 48
    • 64

    Chance Rain

    • 49
    • 68

    Partly Sunny

Today 10 Oct Lower Chehalis River Valley

Mostly sunny. Highs in the mid 50s to lower 60s. Light wind.

Tonight 10 Oct Lower Chehalis River Valley

Mostly clear. Lows near 40. Light wind.

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Chehalis River - Montesano Temperature Statistics

October Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 7 October, 2026

    48 °F

  • Average October

    58.5 °F

  • Highest 3 October, 2026

    73.7 °F

Climate (2021–2026)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    58.7 °F
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