Rock Run County Forest Preserve Rainfall Forecast

Today 16 Aug
45%
Sun 17 Aug
50%
Mon 18 Aug
30%
Tue 19 Aug
30%
Wed 20 Aug
15%
Thu 21 Aug
No Rain
Fri 22 Aug
5%

Rock Run County Forest Preserve Rainfall Statistics

August Rainfall

Joliet Regional Airport (1.2 miles)

Total Rainfall 2025
22.8in
Daily Average 2025
0.1in
Wettest Day 2 April, 2025
2.6in
Wet Days 2025
64/228 (28%)
Total Rainfall July
4.6in
Daily Average July
0.1in
Wettest Day 26 July, 2025
0.7in
Wet Days July
22/31 (71%)
Total Rainfall August
0.2in
Daily Average August
0.01in
Wettest Day 12 August, 2025
0.1in
Wet Days August
2/16 (13%)

Climate (2010–Present)

Joliet Regional Airport (1.2 miles)

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Annual Average 2020–2024
36.2in
Monthly Average 2020–2025
3.1in
Daily Average 2020–2025
0.1in
Wettest Day 6 September, 2023
4.4in

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