Montesano Weather Forecast

    • 51
    • 59

    Mostly Cloudy

    • 50
    • 64

    Chance Rain

    • 48
    • 73

    Mostly Sunny

    • 52
    • 73

    Chance Rain

    • 41
    • 62

    Partly Sunny

    • 46
    • 60

    Rain Likely

    • 43
    • 56

    Rain Likely

Today 13 Oct Lower Chehalis River Valley

Partly sunny. A chance of rain in the Morning, then a slight chance of rain in the afternoon. Highs in the upper 50s.

Tonight 13 Oct Lower Chehalis River Valley

Mostly cloudy. Lows near 50. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Montesano Temperature Statistics

October Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 11 October, 2026

    39 °F

  • Average October

    56.9 °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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