Saint Charles Rainfall Forecast

Today 13 Aug
30%
Fri 14 Aug
15%
Sat 15 Aug
5%
Sun 16 Aug
10%
Mon 17 Aug
40%
Tue 18 Aug
20%
Wed 19 Aug
15%

Saint Charles Rainfall Statistics

August Rainfall

St. Louis Lambert International Airport (6.2 miles)

Total Rainfall 2026
34.4in
Daily Average 2026
0.2in
Wettest Day 18 May, 2026
2.5in
Wet Days 2026
69/225 (31%)
Total Rainfall July
7.5in
Daily Average July
0.2in
Wettest Day 4 July, 2026
1.7in
Wet Days July
12/31 (39%)
Total Rainfall August
1.8in
Daily Average August
0.2in
Wettest Day 6 August, 2026
1.6in
Wet Days August
4/13 (31%)

Climate (2021–2025)

St. Louis Lambert International Airport (6.2 miles)

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Annual Average 2021–2025
42.5in
Monthly Average 2021–2026
3.6in
Daily Average 2021–2026
0.1in
Wettest Day 26 July, 2022
8.6in

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