Montesano Weather Forecast

    • 50
    • 55

    Rain

    • 47
    • 59

    Rain

    • 45
    • 62

    Partly Sunny

    • 47
    • 70

    Partly Sunny

    • 49
    • 75

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

Today 8 Jun Lower Chehalis River Valley

A chance of rain in the Morning, then rain likely late in the morning. Rain in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs in the mid to upper 50s. Light wind becoming east around 10 Mph in the afternoon.

Tonight 8 Jun Lower Chehalis River Valley

Cloudy with rain at Times in the Evening, then cloudy with a chance of rain after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows near 50. East wind around 10 Mph becoming west after midnight.

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Montesano Temperature Statistics

June Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 1 June, 2026

    42.7 °F

  • Average June

    59.4 °F

  • Highest 2 June, 2026

    82.7 °F

Climate (2021–Present)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    58.7 °F
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