Grand Island Rainfall Forecast

Today 31 Jul
70%
Sat 1 Aug
85%
Sun 2 Aug
5%
Mon 3 Aug
No Rain
Tue 4 Aug
10%
Wed 5 Aug
50%
Thu 6 Aug
15%

Grand Island Rainfall Statistics

July Rainfall

Munising - Munising Lakeshore Observation (7.5 miles)

Total Rainfall 2026
24.7in
Daily Average 2026
0.1in
Wettest Day 20 July, 2026
3in
Wet Days 2026
123/212 (58%)
Total Rainfall June
4.1in
Daily Average June
0.1in
Wettest Day 29 June, 2026
1.7in
Wet Days June
15/31 (48%)
Total Rainfall July
4.8in
Daily Average July
0.2in
Wettest Day 20 July, 2026
3in
Wet Days July
8/31 (26%)

Climate (2021–2025)

Munising - Munising Lakeshore Observation (7.5 miles)

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Annual Average 2021–2025
35.1in
Monthly Average 2021–2026
3in
Daily Average 2021–2026
0.1in
Wettest Day 20 July, 2026
3in

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