McHenry Rainfall Forecast
- 20%
- 5%
- 5%
- 20%
- 35%
- 20%
- 25%
McHenry Rainfall Statistics
October Rainfall
Chicago/Waukegan Regional Airport (21.1 miles)
Total Rainfall October
1.9inDaily Average October
0.1inWettest Day 19 October, 2025
0.8inWet Days October
8/25 (32%)
Climate (2010–Present)
Chicago/Waukegan Regional Airport (21.1 miles)
Annual Average 2020–2024
34.5inMonthly Average 2020–2025
2.7inDaily Average 2020–2025
0.1inWettest Day 23 July, 2022
3.9in