Cornelius Weather Forecast

    • 53
    • 90

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

    • 47
    • 78

    Partly Sunny

    • 48
    • 76

    Mostly Cloudy

    • 48
    • 70

    Partly Sunny

Today 3 May Tualatin Valley

Sunny. Highs in the lower 90s. Winds light.

Tonight 3 May Tualatin Valley

Mostly clear. Lows in the lower 50s. Winds light.

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Cornelius Temperature Statistics

May Temperature

Portland-Hillsboro Airport (5 miles)

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Climate (2021–Present)

Portland-Hillsboro Airport (5 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    64.6 °F
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