McHenry Rainfall Forecast

Today 7 Sep
No Rain
Tue 8 Sep
5%
Wed 9 Sep
75%
Thu 10 Sep
No Rain
Fri 11 Sep
No Rain
Sat 12 Sep
25%
Sun 13 Sep
40%

McHenry Rainfall Statistics

September Rainfall

Chicago/Waukegan Regional Airport (21.1 miles)

Total Rainfall 2026
31.2in
Daily Average 2026
0.1in
Wettest Day 11 June, 2026
2in
Wet Days 2026
79/250 (32%)
Total Rainfall August
6.1in
Daily Average August
0.2in
Wettest Day 1 August, 2026
1.5in
Wet Days August
15/31 (48%)
Total Rainfall September
0.3in
Daily Average September
0.1in
Wettest Day 4 September, 2026
0.2in
Wet Days September
2/7 (29%)

Climate (2021–2025)

Chicago/Waukegan Regional Airport (21.1 miles)

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Annual Average 2021–2025
31.8in
Monthly Average 2021–2026
3in
Daily Average 2021–2026
0.1in
Wettest Day 23 July, 2022
3.9in

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