Upper Mississippi Conservation Area Rainfall Forecast

Today 27 May
20%
Thu 28 May
No Rain
Fri 29 May
15%
Sat 30 May
10%
Sun 31 May
15%
Mon 1 Jun
10%
Tue 2 Jun
5%

Upper Mississippi Conservation Area Rainfall Statistics

May Rainfall

St. Charles, St. Charles County Smartt Airport (22.4 miles)

Total Rainfall 2026
13.7in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
1.6in
Wet Days 2026
40/147 (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
0.1in
Wettest Day 18 May, 2026
1.6in
Wet Days May
11/27 (41%)

Climate (2010–Present)

St. Charles, St. Charles County Smartt Airport (22.4 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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