North Plains Weather Forecast

    • 48
    • 67

    Slight Chance Rain

    • 51
    • 65

    Rain Likely

    • 38
    • 60

    Rain

    • 32
    • 56

    Slight Chance Rain

    • 37
    • 58

    Mostly Cloudy

    • 42
    • 58

    Rain Likely

    • 39
    • 56

    Rain

Today 18 Mar Tualatin Valley

Mostly cloudy with a 20 percent chance of rain. Highs in the upper 60s. Winds light.

Tonight 18 Mar Tualatin Valley

Mostly cloudy with a 20 percent chance of rain. Lows in the upper 40s. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

North Plains Temperature Statistics

March Temperature

Portland-Hillsboro Airport (3.7 miles)

  • Lowest 9 March, 2026

    33.1 °F

  • Average March

    47.8 °F

  • Highest 16 March, 2026

    68 °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

    64.5 °F
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