Thunder Bay Rainfall Forecast

Today 1 Aug
45%
Sun 2 Aug
60%
Mon 3 Aug
No Rain
Tue 4 Aug
No Rain
Wed 5 Aug
30%
Thu 6 Aug
25%
Fri 7 Aug
20%

Thunder Bay Rainfall Statistics

August Rainfall

Alpena, Alpena County Regional Airport (13 miles)

Total Rainfall 2026
26.5in
Daily Average 2026
0.1in
Wettest Day 18 July, 2026
2.6in
Wet Days 2026
98/213 (46%)
Total Rainfall July
4.6in
Daily Average July
0.2in
Wettest Day 18 July, 2026
2.6in
Wet Days July
8/31 (26%)
Total Rainfall August
–
Daily Average August
–
Wettest Day 1 August, 2026
–
Wet Days August
–

Climate (2021–2025)

Alpena, Alpena County Regional Airport (13 miles)

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Annual Average 2021–2025
30.2in
Monthly Average 2021–2026
2.7in
Daily Average 2021–2026
0.1in
Wettest Day 29 December, 2025
4.2in

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