South Montesano Weather Forecast

    • 49
    • 75

    Increasing Clouds

    • 49
    • 75

    Partly Sunny

    • 53
    • 69

    Mostly Cloudy

    • 49
    • 67

    Mostly Cloudy

    • 49
    • 70

    Mostly Sunny

    • 51
    • 69

    Mostly Cloudy

Today 5 Jul Lower Chehalis River Valley

Sunny. Highs in the 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 5 Jul Lower Chehalis River Valley

Mostly clear. Lows near 50. Northwest wind to 10 Mph in the evening becoming light.

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South Montesano Temperature Statistics

July Temperature

Hoquiam, Bowerman Airport (14.3 miles)

  • Lowest 1 July, 2026

    53.7 °F

  • Average July

    58.5 °F

  • Highest 3 July, 2026

    64 °F

Climate (2021–2026)

Hoquiam, Bowerman Airport (14.3 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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