Montesano Weather Forecast

    • 45
    • 68

    Chance Rain

    • 46
    • 74

    Chance Rain

    • 47
    • 71

    Rain Likely

    • 46
    • 64

    Rain Likely

    • 43
    • 58

    Chance Rain

    • 41
    • 62

    Partly Sunny

Today 18 Apr Lower Chehalis River Valley

Partly sunny. Highs in the mid 60s to lower 70s. Light wind.

Tonight 18 Apr Lower Chehalis River Valley

Mostly cloudy. A slight chance of rain after midnight. Lows in the mid to upper 40s. Light wind.

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  • Temperature Real-Time

Montesano Temperature Statistics

April Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 8 April, 2026

    34.6 °F

  • Average April

    49.8 °F

  • Highest 5 April, 2026

    72.6 °F

Climate (2021–Present)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    58.6 °F
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