Arlington Heights Weather Forecast

    • 54
    • 67

    Chance Rain

    • 42
    • 62

    Rain Likely

    • 35
    • 54

    Partly Sunny

    • 41
    • 57

    Mostly Cloudy

    • 48
    • 60

    Rain Likely

    • 42
    • 58

    Rain

Today 19 Mar West Hills and Chehalem Mountains

Mostly cloudy. A slight chance of rain this Morning, then a chance of rain this afternoon. Highs in the mid 60s. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 19 Mar West Hills and Chehalem Mountains

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

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Arlington Heights Temperature Statistics

March Temperature

Portland, Portland International Airport (6.8 miles)

  • Lowest 9 March, 2026

    37.9 °F

  • Average March

    49.3 °F

  • Highest 16 March, 2026

    68 °F

Climate (2021–Present)

Portland, Portland International Airport (6.8 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.5 °F
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