Montesano Weather Forecast

    • 48
    • 73

    Increasing Clouds

    • 53
    • 71

    Mostly Cloudy

    • 44
    • 60

    Rain Likely

    • 40
    • 60

    Mostly Sunny

    • 39
    • 63

    Mostly Sunny

    • 42
    • 64

    Partly Sunny

    • 45
    • 64

    Slight Chance Rain

Today 7 Oct Lower Chehalis River Valley

Mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. Light wind becoming northeast to 10 Mph in the afternoon.

Tonight 7 Oct Lower Chehalis River Valley

Partly cloudy. Lows in the mid 40s to lower 50s. Northwest wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Montesano Temperature Statistics

October Temperature

Hoquiam, Bowerman Airport (14.9 miles)

  • Lowest 1 October, 2026

    49.6 °F

  • Average October

    59.3 °F

  • Highest 3 October, 2026

    73.7 °F

Climate (2021–2026)

Hoquiam, Bowerman Airport (14.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    58.6 °F
Get WillyWeather+ to remove ads