Columbia River - Barlow Point Weather Forecast

    • 60
    • 74

    Chance Rain Showers

    • 57
    • 71

    Mostly Cloudy

    • 60
    • 71

    Rain Showers Likely

    • 58
    • 66

    Rain Showers Likely

    • 56
    • 71

    Chance Rain Showers

    • 57
    • 73

    Mostly Cloudy

Today 6 Sep Cowlitz County Lowlands

Mostly cloudy with a slight chance of Showers this Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the upper 70s. Light and variable Winds, becoming light this afternoon. Chance of rain 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 6 Sep Cowlitz County Lowlands

A slight chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Lows in the upper 50s. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Columbia River - Barlow Point Temperature Statistics

September Temperature

Southwest Washington Regional Airport (6.8 miles)

  • Lowest 2 September, 2025

    55.9 °F

  • Average September

    68.3 °F

  • Highest 2 September, 2025

    88 °F

Climate (2020–Present)

Southwest Washington Regional Airport (6.8 miles)

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

  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    62.3 °F
Get WillyWeather+ to remove ads