Montesano Weather Forecast

    • 50
    • 68

    Decreasing Clouds

    • 47
    • 68

    Partly Sunny

    • 49
    • 76

    Mostly Sunny

    • 49
    • 77

    Partly Sunny

    • 52
    • 69

    Mostly Cloudy

    • 49
    • 69

    Mostly Cloudy

Today 3 Jul Lower Chehalis River Valley

Mostly cloudy. Highs in the 60s to lower 70s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 3 Jul Lower Chehalis River Valley

Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. West wind around 10 Mph in the evening becoming light.

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Montesano Temperature Statistics

July Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 1 July, 2026

    53.1 °F

  • Average July

    56.7 °F

  • Highest 1 July, 2026

    61 °F

Climate (2021–2026)

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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