Wallace Slough - Wallace Island Weather Forecast

    • 46
    • 62

    Increasing Clouds

    • 47
    • 63

    Partly Sunny

    • 48
    • 63

    Mostly Cloudy

    • 48
    • 67

    Partly Sunny

    • 50
    • 69

    Partly Sunny

    • 48
    • 67

    Partly Sunny

    • 47
    • 66

    Partly Sunny

Today 17 May Lower Columbia River

Sunny. Highs in the upper 60s. Northwest wind 5 to 10 Mph.

Tonight 17 May Lower Columbia River

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. Northwest wind 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Wallace Slough - Wallace Island Temperature Statistics

May Temperature

Southwest Washington Regional Airport (17.4 miles)

  • Lowest 9 May, 2026

    44.1 °F

  • Average May

    60.2 °F

  • Highest 3 May, 2026

    91 °F

Climate (2021–Present)

Southwest Washington Regional Airport (17.4 miles)

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

  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
Get WillyWeather+ to remove ads