Grimsby Rainfall Forecast

Today 14 Aug
10%
Sat 15 Aug
No Rain
Sun 16 Aug
5%
Mon 17 Aug
20%
Tue 18 Aug
5%
Wed 19 Aug
10%
Thu 20 Aug
30%

Grimsby Rainfall Statistics

August Rainfall

Southern Illinois Airport (11.2 miles)

Total Rainfall 2026
23in
Daily Average 2026
0.1in
Wettest Day 10 July, 2026
3.1in
Wet Days 2026
63/226 (28%)
Total Rainfall July
9.4in
Daily Average July
0.3in
Wettest Day 10 July, 2026
3.1in
Wet Days July
12/31 (39%)
Total Rainfall August
0.3in
Daily Average August
0.03in
Wettest Day 6 August, 2026
0.2in
Wet Days August
3/14 (21%)

Climate (2021–2025)

Southern Illinois Airport (11.2 miles)

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Annual Average 2021–2025
35.3in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 10 July, 2026
3.1in

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