Tanasbourne Weather Forecast

    • 50
    • 75

    Chance Rain

    • 46
    • 62

    Rain Likely

    • 43
    • 59

    Rain Likely

    • 43
    • 67

    Mostly Sunny

    • 45
    • 74

    Mostly Sunny

    • 45
    • 73

    Partly Sunny

Today 20 Apr Tualatin Valley

Mostly cloudy. A chance of rain this afternoon. Highs in the mid 70s. Light and variable Winds, becoming light this afternoon. Chance of rain 40 percent.

Tonight 20 Apr Tualatin Valley

Mostly cloudy with a 50 percent chance of rain. Lows around 50. Winds light. Rainfall Amounts less than a tenth of an inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tanasbourne Temperature Statistics

April Temperature

Portland-Hillsboro Airport (3.7 miles)

  • Lowest 16 April, 2026

    32.6 °F

  • Average April

    52.2 °F

  • Highest 5 April, 2026

    79.6 °F

Climate (2021–Present)

Portland-Hillsboro Airport (3.7 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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