Markham Weather Forecast

    • 41
    • 54

    Rain Showers Likely

    • 46
    • 56

    Rain

    • 42
    • 58

    Chance Rain Showers

    • 44
    • 59

    Mostly Cloudy

    • 53
    • 58

    Rain

    • 46
    • 60

    Rain Likely

Today 27 Oct Inner Portland Metro

Mostly cloudy with rain Showers likely this Morning, then partly sunny with a chance of rain Showers this afternoon. Highs in the mid 50s. Winds light. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 27 Oct Inner Portland Metro

Partly cloudy. A slight chance of rain after midnight. Lows in the lower 40s. Northeast wind 5 to 10 Mph. Chance of rain 20 percent.

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Markham Temperature Statistics

October Temperature

Portland, Portland International Airport (10.6 miles)

  • Lowest 15 October, 2025

    39 °F

  • Average October

    55.6 °F

  • Highest 7 October, 2025

    79 °F

Climate (2020–Present)

Portland, Portland International Airport (10.6 miles)

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  • Average Low 2020–2025

    48.3 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.3 °F
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