Cornelius Weather Forecast

    • 38
    • 63

    Becoming Sunny

    • 42
    • 67

    Mostly Sunny

    • 44
    • 72

    Mostly Sunny

    • 45
    • 72

    Partly Sunny

    • 42
    • 62

    Chance Rain

    • 39
    • 57

    Chance Rain

Today 7 Apr Tualatin Valley

Sunny. Highs in the mid 60s. Light and variable Winds, becoming light in the afternoon.

Tonight 7 Apr Tualatin Valley

Mostly clear. Lows in the upper 30s. Winds light.

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Cornelius Temperature Statistics

April Temperature

Portland-Hillsboro Airport (5 miles)

  • Lowest 3 April, 2026

    33.7 °F

  • Average April

    49.5 °F

  • Highest 4 April, 2026

    73 °F

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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