Montesano Weather Forecast

    • 52
    • 67

    Mostly Cloudy

    • 49
    • 71

    Decreasing Clouds

    • 54
    • 81

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 55
    • 82

    Partly Sunny

    • 56
    • 77

    Partly Sunny

    • 56
    • 78

    Partly Sunny

Today 1 Aug Lower Chehalis River Valley

Cloudy with rain at Times in the Morning, then cloudy with rain likely late in the morning. Mostly sunny in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the 60s to lower 70s. Southwest wind 10 to 15 Mph becoming west in the afternoon.

Tonight 1 Aug Lower Chehalis River Valley

Partly cloudy in the evening then becoming mostly cloudy. A slight chance of rain late in the evening. Lows in the lower to mid 50s. West wind 10 to 15 Mph in the evening becoming light.

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Montesano Temperature Statistics

August Temperature

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average August

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Climate (2021–2026)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    58.6 °F
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