Montesano Weather Forecast

    • 50
    • 69

    Decreasing Clouds

    • 49
    • 76

    Partly Sunny

    • 52
    • 81

    Partly Sunny

    • 52
    • 76

    Partly Sunny

    • 52
    • 69

    Partly Sunny

    • 53
    • 75

    Partly Sunny

Today 16 Jun Lower Chehalis River Valley

Mostly cloudy until late afternoon then becoming sunny. Highs in the mid 60s to lower 70s. West wind 10 to 20 Mph with Gusts to 30 Mph.

Tonight 16 Jun Lower Chehalis River Valley

Mostly clear. Lows near 50. Northwest wind 10 to 20 Mph with Gusts to 30 Mph.

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Montesano Temperature Statistics

June Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 1 June, 2026

    42.7 °F

  • Average June

    58.7 °F

  • Highest 14 June, 2026

    86 °F

Climate (2021–Present)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    58.7 °F
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