Northwestern University Rainfall Forecast

Today 24 Sep
5%
Fri 25 Sep
10%
Sat 26 Sep
No Rain
Sun 27 Sep
5%
Mon 28 Sep
No Rain
Tue 29 Sep
25%
Wed 30 Sep
55%

Northwestern University Rainfall Statistics

September Rainfall

Chicago / Wheeling, Pal-Waukee Airport (12.4 miles)

Total Rainfall 2026
30in
Daily Average 2026
0.1in
Wettest Day 9 August, 2026
1.8in
Wet Days 2026
89/267 (33%)
Total Rainfall August
4.2in
Daily Average August
0.1in
Wettest Day 9 August, 2026
1.8in
Wet Days August
12/31 (39%)
Total Rainfall September
3.4in
Daily Average September
0.2in
Wettest Day 20 September, 2026
1.1in
Wet Days September
10/24 (42%)

Climate (2021–2025)

Chicago / Wheeling, Pal-Waukee Airport (12.4 miles)

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Annual Average 2021–2025
28.7in
Monthly Average 2021–2026
2.6in
Daily Average 2021–2026
0.1in
Wettest Day 11 September, 2022
2in

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