Cornelius Weather Forecast

    • 60
    • 93

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 63
    • 93

    Sunny

    • 61
    • 94

    Sunny

    • 58
    • 91

    Mostly Sunny

    • 56
    • 88

    Sunny

Today 13 Jul Tualatin Valley

Sunny. Highs in the mid 90s. North wind 10 to 15 Mph.

Tonight 13 Jul Tualatin Valley

Mostly clear. Lows in the lower 60s. Northwest wind 10 to 15 Mph.

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Cornelius Temperature Statistics

July Temperature

Portland-Hillsboro Airport (5 miles)

  • Lowest 5 July, 2025

    46.7 °F

  • Average July

    68 °F

  • Highest 7 July, 2025

    91.7 °F

Climate (2020–Present)

Portland-Hillsboro Airport (5 miles)

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  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    64.3 °F
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