Arlington Heights Weather Forecast

    • 42
    • 52

    Rain

    • 43
    • 49

    Rain

    • 46
    • 50

    Rain

    • 47
    • 55

    Chance Rain

    • 41
    • 55

    Rain Likely

    • 36
    • 50

    Rain

    • 38
    • 48

    Rain Likely

Today 4 Mar West Hills and Chehalem Mountains

Rain with a slight chance of Thunderstorms. Highs around 50. West wind 10 to 15 Mph. Chance of rain near 100 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 4 Mar West Hills and Chehalem Mountains

Rain Likely, mainly in the evening. Lows around 40. West wind 5 to 10 Mph. Chance of rain 70 percent. 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 1 March, 2026

    39.9 °F

  • Average March

    50.5 °F

  • Highest 2 March, 2026

    61 °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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