Montesano Weather Forecast

    • 51
    • 68

    Patchy Fog

    • 49
    • 74

    Mostly Sunny

    • 50
    • 75

    Partly Sunny

    • 51
    • 68

    Mostly Cloudy

    • 47
    • 66

    Mostly Cloudy

    • 47
    • 68

    Partly Sunny

Today 2 Oct Lower Chehalis River Valley

Mostly cloudy. Patchy dense fog in the morning. Highs in the mid 60s to lower 70s. Light wind.

Tonight 2 Oct Lower Chehalis River Valley

Mostly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Light wind.

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Montesano Temperature Statistics

October Temperature

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average October

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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

    58.6 °F
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