Cornelius Weather Forecast

    • 43
    • 49

    Rain

    • 39
    • 52

    Rain

    • 44
    • 53

    Rain Showers Likely

    • 46
    • 57

    Rain Showers Likely

    • 48
    • 70

    Partly Sunny

    • 49
    • 74

    Partly Sunny

Today 20 Mar Tualatin Valley

Rain Showers in the Morning, then rain in the afternoon. Highs in the upper 40s. South wind 5 to 10 Mph. Chance of rain near 100 percent. Rainfall Amounts around a quarter of an inch.

Tonight 20 Mar Tualatin Valley

Rain. Lows in the lower 40s. South wind 10 to 15 Mph. Chance of rain near 100 percent. Rainfall Amounts a quarter to a half of an inch.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornelius Temperature Statistics

March Temperature

Portland-Hillsboro Airport (5 miles)

  • Lowest 7 March, 2025

    29.8 °F

  • Average March

    45.4 °F

  • Highest 1 March, 2025

    63.6 °F

Climate (2020–Present)

Portland-Hillsboro Airport (5 miles)

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

  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    64.1 °F
Get WillyWeather+ to remove ads