St Charles Rainfall Forecast

Today 4 Sep
60%
Fri 5 Sep
65%
Sat 6 Sep
30%
Sun 7 Sep
No Rain
Mon 8 Sep
No Rain
Tue 9 Sep
5%
Wed 10 Sep
5%

St Charles Rainfall Statistics

September Rainfall

St. Louis Lambert International Airport (7.5 miles)

Total Rainfall 2025
31.5in
Daily Average 2025
0.1in
Wettest Day 4 April, 2025
3.5in
Wet Days 2025
70/247 (28%)
Total Rainfall August
1.5in
Daily Average August
0.05in
Wettest Day 17 August, 2025
1.1in
Wet Days August
5/31 (16%)
Total Rainfall September
0.1in
Daily Average September
0.03in
Wettest Day 2 September, 2025
0.1in
Wet Days September
1/4 (25%)

Climate (2010–Present)

St. Louis Lambert International Airport (7.5 miles)

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Annual Average 2020–2024
44.9in
Monthly Average 2020–2025
3.6in
Daily Average 2020–2025
0.1in
Wettest Day 26 July, 2022
8.6in

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