Montesano Weather Forecast

    • 31
    • 46

    Increasing Clouds

    • 37
    • 47

    Mostly Cloudy

    • 41
    • 50

    Rain Likely

    • 45
    • 51

    Rain

    • 46
    • 51

    Rain Likely

    • 46
    • 53

    Rain Likely

    • 44
    • 54

    Chance Rain

Today 25 Jan Lower Chehalis River Valley

Mostly sunny in the morning then becoming partly sunny. Highs in the mid to upper 40s. Light wind.

Tonight 25 Jan Lower Chehalis River Valley

Mostly cloudy. Lows in the upper 20s to mid 30s. East wind to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Montesano Temperature Statistics

January Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 22 January, 2026

    28 °F

  • Average January

    44.5 °F

  • Highest 17 January, 2026

    57 °F

Climate (2021–Present)

Hoquiam, Bowerman Airport (14.9 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    58.4 °F
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