Markham Weather Forecast
- 65
- 80
Slight Chance Thunderstorms
- 66
- 85
Chance Rain Showers
- 63
- 82
Partly Sunny
- 62
- 80
Partly Sunny
- 67
- 81
Slight Chance Thunderstorms
- 71
- 85
Chance Rain Showers
Today 25 Aug Southern Cook
Partly cloudy. Near steady temperature in the upper 70s. South Winds around 5 Mph.
Tonight 25 Aug Southern Cook
Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late. Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of precipitation 20 percent.
Markham Temperature Statistics
August Temperature
Lansing Municipal Airport (9.3 miles)
Lowest 21 August, 2026
56.3 °FAverage August
72.5 °FHighest 10 August, 2026
86.9 °F
Climate (2021–2026)
Lansing Municipal Airport (9.3 miles)
Average Low 2021–2026
42.4 °FAverage 2021–2026
51.5 °FAverage High 2021–2026
60.4 °F