0in

Rain Today

Rain Last Hour
0in

Recorded at St. Charles, St. Charles County Smartt Airport Updated 1 hour 3 mins ago (4.9 miles away)

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Real-Time Extremes

Hottest 91.3 °F
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Coldest 30.1 °F
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Windiest 28.9mph
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Wettest (Last Hour) 1.4in
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Most Humid 100%
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Least Humid 26%
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Highest Pressure 1043.7 hPa
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Lowest Pressure 988.8 hPa
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Portage Des Sioux Rainfall Forecast

Today 17 Sep
30%
Fri 18 Sep
20%
Sat 19 Sep
10%
Sun 20 Sep
20%
Mon 21 Sep
50%
Tue 22 Sep
40%
Wed 23 Sep
10%

Portage Des Sioux Rainfall Statistics

September Rainfall

St. Charles, St. Charles County Smartt Airport (4.3 miles)

Total Rainfall 2026
24in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
1.6in
Wet Days 2026
70/260 (27%)
Total Rainfall August
2.2in
Daily Average August
0.1in
Wettest Day 16 August, 2026
1.2in
Wet Days August
10/31 (32%)
Total Rainfall September
0.3in
Daily Average September
0.02in
Wettest Day 15 September, 2026
0.1in
Wet Days September
3/17 (18%)

Climate (2021–2025)

St. Charles, St. Charles County Smartt Airport (4.3 miles)

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Annual Average 2021–2025
36.2in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 16 July, 2024
3.8in

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