Montesano Weather Forecast

    • 42
    • 58

    Slight Chance Thunderstorms

    • 47
    • 61

    Mostly Cloudy

    • 49
    • 59

    Rain

    • 46
    • 60

    Rain Showers Likely

    • 46
    • 63

    Chance Rain

    • 47
    • 68

    Partly Sunny

    • 51
    • 77

    Mostly Sunny

Today 6 Jun Lower Chehalis River Valley

Showers and a slight chance of Thunderstorms in the Morning, then partly sunny with a chance of Showers and a slight chance of Thunderstorms in the afternoon. Rainfall Amounts a tenth to a quarter of an inch Possible, except higher Amounts possible in Thunderstorms. Highs in the mid 50s to lower 60s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 6 Jun Lower Chehalis River Valley

Partly cloudy until early morning then becoming mostly cloudy. Lows in the 40s. West wind around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Montesano Temperature Statistics

June Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 1 June, 2026

    42.7 °F

  • Average June

    60.2 °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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