St. Charles Airport Rainfall Forecast

Today 23 May
15%
Sun 24 May
60%
Mon 25 May
5%
Tue 26 May
65%
Wed 27 May
70%
Thu 28 May
65%
Fri 29 May
45%

St. Charles Airport Rainfall Statistics

May Rainfall

St. Charles, St. Charles County Smartt Airport (6.2 miles)

Total Rainfall 2026
13.6in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
1.6in
Wet Days 2026
39/143 (27%)
Total Rainfall April
5.1in
Daily Average April
0.2in
Wettest Day 1 April, 2026
1.2in
Wet Days April
13/30 (43%)
Total Rainfall May
3.4in
Daily Average May
0.2in
Wettest Day 18 May, 2026
1.6in
Wet Days May
10/23 (43%)

Climate (2010–Present)

St. Charles, St. Charles County Smartt Airport (6.2 miles)

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Annual Average 2021–2025
36.2in
Monthly Average 2021–2026
3in
Daily Average 2021–2026
0.1in
Wettest Day 16 July, 2024
3.8in

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