Block Island Sound Rainfall Forecast

Today 16 Aug
No Rain
Mon 17 Aug
80%
Tue 18 Aug
10%
Wed 19 Aug
5%
Thu 20 Aug
45%
Fri 21 Aug
20%
Sat 22 Aug
15%

Block Island Sound Rainfall Statistics

August Rainfall

Westerly, Westerly State Airport (7.5 miles)

Total Rainfall 2026
22.6in
Daily Average 2026
0.1in
Wettest Day 6 July, 2026
1.8in
Wet Days 2026
74/228 (32%)
Total Rainfall July
6.6in
Daily Average July
0.2in
Wettest Day 6 July, 2026
1.8in
Wet Days July
9/31 (29%)
Total Rainfall August
2.7in
Daily Average August
0.2in
Wettest Day 13 August, 2026
1.3in
Wet Days August
4/16 (25%)

Climate (2021–2025)

Westerly, Westerly State Airport (7.5 miles)

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Annual Average 2021–2025
40.5in
Monthly Average 2021–2026
3.4in
Daily Average 2021–2026
0.1in
Wettest Day 11 December, 2024
3.7in

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