Cornelius Weather Forecast

    • 50
    • 77

    Decreasing Clouds

    • 54
    • 77

    Partly Sunny

    • 58
    • 80

    Mostly Cloudy

    • 58
    • 78

    Chance Rain Showers

    • 56
    • 79

    Slight Chance Rain Showers

    • 58
    • 83

    Mostly Sunny

Today 3 Aug Tualatin Valley

Mostly cloudy in the Morning, then becoming mostly sunny. Highs in the upper 70s. Northwest wind 5 to 10 Mph.

Tonight 3 Aug Tualatin Valley

Partly cloudy. Lows in the lower 50s. Northwest wind 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornelius Temperature Statistics

August Temperature

Portland-Hillsboro Airport (5 miles)

  • Lowest

    –

  • Average August

    –

  • Highest

    –

Climate (2020–Present)

Portland-Hillsboro Airport (5 miles)

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

  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    64.3 °F
Get WillyWeather+ to remove ads