Montesano Weather Forecast

    • 53
    • 64

    Rain

    • 49
    • 61

    Rain Likely

    • 50
    • 64

    Rain Likely

    • 50
    • 62

    Chance Rain

    • 50
    • 62

    Mostly Cloudy

    • 49
    • 63

    Mostly Cloudy

    • 48
    • 63

    Chance Rain

Today 25 Jun Lower Chehalis River Valley

Cloudy. A slight chance of rain late in the afternoon. Highs in the 60s. Light wind.

Tonight 25 Jun Lower Chehalis River Valley

Rain likely in the Evening, then rain at Times after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the lower to mid 50s. South wind to 10 Mph with Gusts to 20 Mph.

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Montesano Temperature Statistics

June Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 1 June, 2026

    42.7 °F

  • Average June

    59.6 °F

  • Highest 14 June, 2026

    86 °F

Climate (2021–2026)

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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