Oak Brook Weather Forecast
- 26
- 46
Mostly Sunny
- 40
- 49
Partly Sunny
- 49
- 62
Partly Sunny
- 63
- 74
Rain Showers Likely
- 38
- 75
Rain Showers Likely
- 34
- 45
Rain Showers Likely
- 39
- 46
Chance Rain Showers
Today 27 Mar DuPage
Partly cloudy. Highs in the mid 40s. North Winds 10 to 15 Mph.
Tonight 27 Mar DuPage
Mostly clear. Lows in the mid 20s. Northwest Winds 10 to 15 Mph, becoming north 5 to 10 Mph after midnight.
Oak Brook Temperature Statistics
March Temperature
Chicago, Chicago-O'Hare International Airport (9.9 miles)
Lowest 17 March, 2026
14.6 °FAverage March
42.7 °FHighest 21 March, 2026
77.6 °F
Climate (2021–Present)
Chicago, Chicago-O'Hare International Airport (9.9 miles)
Average Low 2021–2026
45.3 °FAverage 2021–2026
53.5 °FAverage High 2021–2026
61.8 °F