Markham Weather Forecast

    • 60
    • 82

    Mostly Sunny

    • 64
    • 85

    Partly Sunny

    • 60
    • 83

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 59
    • 80

    Mostly Cloudy

    • 58
    • 77

    Partly Sunny

Today 25 May Southern Cook

Mostly sunny. Patchy fog early in the morning. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 25 May Southern Cook

Clear. Lows around 60. South Winds 5 to 10 Mph.

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Markham Temperature Statistics

May Temperature

Lansing Municipal Airport (9.3 miles)

  • Lowest 2 May, 2026

    28.6 °F

  • Average May

    56 °F

  • Highest 17 May, 2026

    85.5 °F

Climate (2021–Present)

Lansing Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.5 °F
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