Montesano Weather Forecast

    • 52
    • 78

    Increasing Clouds

    • 57
    • 85

    Mostly Cloudy

    • 56
    • 87

    Mostly Cloudy

    • 56
    • 82

    Partly Sunny

    • 55
    • 74

    Mostly Cloudy

    • 54
    • 71

    Mostly Cloudy

Today 19 Jul Lower Chehalis River Valley

Partly sunny in the morning then becoming sunny. Patchy fog in the morning. Highs in the 70s to lower 80s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 19 Jul Lower Chehalis River Valley

Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the lower to mid 50s. 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 6 July, 2026

    47.6 °F

  • Average July

    59.4 °F

  • Highest 13 July, 2026

    75.7 °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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