Montesano Weather Forecast

    • 50
    • 71

    Increasing Clouds

    • 57
    • 80

    Rain

    • 51
    • 67

    Rain

    • 49
    • 70

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

Today 30 Jul Lower Chehalis River Valley

Mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 30 Jul Lower Chehalis River Valley

Partly cloudy. Lows near 50. West wind to 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

    61.2 °F

  • Highest 21 July, 2026

    79.6 °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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