Chatham Weather Forecast
- 62
- 76
Mostly Cloudy
- 38
- 76
Rain Showers
- 40
- 41
Rain Showers
- 45
- 64
Rain Showers Likely
- 44
- 51
Chance Rain Showers
- 39
- 64
Rain Showers Likely
Today 30 Mar Central Cook
Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the upper 70s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon.
Tonight 30 Mar Central Cook
Mostly cloudy. A slight chance of Showers and Thunderstorms in the late evening and early morning. A chance of Showers and Thunderstorms late. Lows in the lower 60s. South Winds 10 to 15 Mph, increasing to southwest 15 to 20 Mph after midnight. Chance of precipitation 30 percent.
Chatham Temperature Statistics
March Temperature
Chicago, Chicago Midway Airport (7.5 miles)
Lowest 16 March, 2026
21 °FAverage March
43.1 °FHighest 21 March, 2026
77 °F
Climate (2021–Present)
Chicago, Chicago Midway Airport (7.5 miles)
Average Low 2021–2026
46.7 °FAverage 2021–2026
54.3 °FAverage High 2021–2026
62 °F