Tampier Slough Woods (Cook County Forest Preserve) Rainfall Forecast

Today 14 Sep
10%
Tue 15 Sep
60%
Wed 16 Sep
75%
Thu 17 Sep
55%
Fri 18 Sep
35%
Sat 19 Sep
55%
Sun 20 Sep
45%

Tampier Slough Woods (Cook County Forest Preserve) Rainfall Statistics

September Rainfall

Lewis University Airport (10.6 miles)

Total Rainfall 2026
34.9in
Daily Average 2026
0.1in
Wettest Day 1 August, 2026
3.5in
Wet Days 2026
85/257 (33%)
Total Rainfall August
6.8in
Daily Average August
0.2in
Wettest Day 1 August, 2026
3.5in
Wet Days August
12/31 (39%)
Total Rainfall September
0.1in
Daily Average September
0.01in
Wettest Day 9 September, 2026
0.1in
Wet Days September
2/14 (14%)

Climate (2021–2025)

Lewis University Airport (10.6 miles)

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Annual Average 2021–2025
31.6in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 1 August, 2026
3.5in

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