Markham Weather Forecast

    • 58
    • 83

    Slight Chance Thunderstorms

    • 57
    • 81

    Slight Chance Thunderstorms

    • 58
    • 83

    Mostly Cloudy

    • 57
    • 83

    Partly Sunny

    • 55
    • 81

    Partly Sunny

    • 57
    • 79

    Partly Sunny

    • 58
    • 81

    Partly Sunny

Today 14 Aug Inner Portland Metro

Sunny. Patchy smoke. Highs in the mid 80s. Winds light.

Tonight 14 Aug Inner Portland Metro

Mostly cloudy. Patchy smoke this evening. A slight chance of Thunderstorms after midnight. Lows in the upper 50s. Winds light. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Markham Temperature Statistics

August Temperature

Portland, Portland International Airport (10.6 miles)

  • Lowest 3 August, 2026

    55.7 °F

  • Average August

    72.2 °F

  • Highest 6 August, 2026

    94.6 °F

Climate (2021–2026)

Portland, Portland International Airport (10.6 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.4 °F
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