Montesano Weather Forecast

    • 55
    • 83

    Increasing Clouds

    • 52
    • 76

    Becoming Sunny

    • 50
    • 69

    Partly Sunny

    • 48
    • 69

    Partly Sunny

    • 49
    • 71

    Partly Sunny

    • 51
    • 72

    Partly Sunny

    • 51
    • 73

    Partly Sunny

Today 30 Jun Lower Chehalis River Valley

Sunny. Highs in the mid 70s to lower 80s. Light wind becoming west 10 to 15 Mph in the afternoon.

Tonight 30 Jun Lower Chehalis River Valley

Mostly clear. Lows in the lower to mid 50s. West wind to 10 Mph with Gusts to 20 Mph.

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Montesano Temperature Statistics

June Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 15 June, 2025

    44.7 °F

  • Average June

    57.1 °F

  • Highest 8 June, 2025

    79.6 °F

Climate (2020–Present)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    58.3 °F
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