O'Brien Lake Rainfall Forecast

Today 15 Aug
80%
Sun 16 Aug
65%
Mon 17 Aug
10%
Tue 18 Aug
5%
Wed 19 Aug
50%
Thu 20 Aug
15%
Fri 21 Aug
15%

O'Brien Lake Rainfall Statistics

August Rainfall

Southwest Michigan Regional Airport (13 miles)

Total Rainfall 2026
20.9in
Daily Average 2026
0.1in
Wettest Day 4 April, 2026
1.9in
Wet Days 2026
92/227 (41%)
Total Rainfall July
2.3in
Daily Average July
0.1in
Wettest Day 3 July, 2026
1.5in
Wet Days July
8/31 (26%)
Total Rainfall August
1.1in
Daily Average August
0.1in
Wettest Day 9 August, 2026
0.4in
Wet Days August
7/15 (47%)

Climate (2021–2025)

Southwest Michigan Regional Airport (13 miles)

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Annual Average 2021–2025
33.9in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 15 July, 2024
2.4in

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