Montesano Weather Forecast

    • 55
    • 72

    Chance Rain

    • 55
    • 74

    Mostly Cloudy

    • 57
    • 67

    Chance Rain

    • 54
    • 69

    Chance Rain

    • 53
    • 72

    Mostly Cloudy

    • 52
    • 72

    Partly Sunny

Today 23 Jul Lower Chehalis River Valley

Mostly cloudy. A chance of Showers and a slight chance of Thunderstorms in the Morning, then a chance of rain late in the morning. Highs in the upper 60s to mid 70s. Southwest wind to 10 Mph.

Tonight 23 Jul Lower Chehalis River Valley

Mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. 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

    60.4 °F

  • Highest 21 July, 2026

    78.1 °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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