Montesano Weather Forecast

    • 49
    • 69

    Mostly Cloudy

    • 46
    • 72

    Mostly Sunny

    • 49
    • 78

    Mostly Sunny

    • 51
    • 78

    Partly Sunny

    • 53
    • 75

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 53
    • 79

    Partly Sunny

Today 11 Jul Lower Chehalis River Valley

Partly sunny. Highs in the mid 60s to lower 70s. Southwest wind to 10 Mph.

Tonight 11 Jul Lower Chehalis River Valley

Mostly cloudy. Lows near 50. Southwest 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 6 July, 2026

    47.6 °F

  • Average July

    58.7 °F

  • Highest 5 July, 2026

    69.7 °F

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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