Chatham Weather Forecast
- 67
- 76
Areas Smoke
- 73
- 87
Partly Sunny
- 66
- 86
Chance Rain Showers
- 62
- 75
Mostly Sunny
- 66
- 81
Partly Sunny
- 68
- 82
Partly Sunny
Today 19 Jul Central Cook
Partly cloudy in the Morning, then clearing. Areas of smoke until late Afternoon, then patchy smoke late. Highs in the lower 80s Inland, but only in the mid 70s near the lake. Northeast Winds 5 to 10 Mph.
Tonight 19 Jul Central Cook
Mostly clear. Patchy smoke. Lows in the mid 60s. East Winds around 5 Mph, becoming south after midnight.
Chatham Temperature Statistics
July Temperature
Chicago, Chicago Midway Airport (7.5 miles)
Lowest 5 July, 2026
66.9 °FAverage July
79.4 °FHighest 14 July, 2026
95 °F
Climate (2021–2026)
Chicago, Chicago Midway Airport (7.5 miles)
Average Low 2021–2026
46.7 °FAverage 2021–2026
54.4 °FAverage High 2021–2026
62 °F