Cornelius Weather Forecast

    • 43
    • 57

    Mostly Cloudy

    • 38
    • 60

    Mostly Sunny

    • 37
    • 59

    Mostly Sunny

    • 41
    • 58

    Partly Sunny

    • 44
    • 56

    Rain

    • 41
    • 53

    Rain Likely

    • 36
    • 51

    Chance Rain

Today 3 Feb Tualatin Valley

Patchy fog this morning. Partly sunny. Highs in the upper 50s. Light and variable Winds.

Tonight 3 Feb Tualatin Valley

Mostly cloudy. Lows in the lower 40s. Winds light this Evening, becoming light and variable.

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Cornelius Temperature Statistics

February Temperature

Portland-Hillsboro Airport (5 miles)

  • Lowest 1 February, 2026

    37.9 °F

  • Average February

    46.6 °F

  • Highest 1 February, 2026

    57 °F

Climate (2021–Present)

Portland-Hillsboro Airport (5 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    64.4 °F
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