Lake Superior Rainfall Forecast

Today 2 Aug
No Rain
Sun 3 Aug
5%
Mon 4 Aug
10%
Tue 5 Aug
10%
Wed 6 Aug
20%
Thu 7 Aug
35%
Fri 8 Aug
30%

Lake Superior Rainfall Statistics

August Rainfall

Grand Marais, The Bay of Grand Marais (28 miles)

Total Rainfall 2025
18.6in
Daily Average 2025
0.1in
Wettest Day 23 July, 2025
2.1in
Wet Days 2025
77/214 (36%)
Total Rainfall July
5.1in
Daily Average July
0.2in
Wettest Day 23 July, 2025
2.1in
Wet Days July
14/31 (45%)
Total Rainfall August
–
Daily Average August
–
Wettest Day 2 August, 2025
–
Wet Days August
–

Climate (2010–Present)

Grand Marais, The Bay of Grand Marais (28 miles)

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Annual Average 2020–2024
25.3in
Monthly Average 2020–2025
2.2in
Daily Average 2020–2025
0.1in
Wettest Day 11 November, 2021
3.4in

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