Arlington Heights Weather Forecast

    • 39
    • 51

    Dense Fog

    • 40
    • 55

    Mostly Sunny

    • 37
    • 53

    Mostly Sunny

    • 35
    • 54

    Mostly Sunny

    • 35
    • 52

    Mostly Sunny

    • 35
    • 51

    Partly Sunny

Today 14 Jan West Hills and Chehalem Mountains

Mostly sunny. Patchy dense fog. Highs around 50. Winds light.

Tonight 14 Jan West Hills and Chehalem Mountains

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy dense fog. Lows in the upper 30s. Winds light.

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Arlington Heights Temperature Statistics

January Temperature

Portland, Portland International Airport (6.8 miles)

  • Lowest 5 January, 2026

    35.1 °F

  • Average January

    43.4 °F

  • Highest 12 January, 2026

    54 °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

    56.2 °F

  • Average High 2021–2026

    65.4 °F
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