0in

Rain Today

Rain Last Hour
0in

Recorded at St. Louis Regional Airport Updated 1 hour 2 mins ago (16.5 miles away)

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Real-Time Extremes

Hottest 89.5 °F
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Coldest 30.1 °F
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Windiest 30mph
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Wettest (Last Hour) 0.4in
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Most Humid 100%
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Least Humid 13%
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Highest Pressure 1040.3 hPa
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Lowest Pressure 1004.4 hPa
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Piasa Rainfall Forecast

Today 5 Sep
15%
Sun 6 Sep
10%
Mon 7 Sep
No Rain
Tue 8 Sep
No Rain
Wed 9 Sep
10%
Thu 10 Sep
40%
Fri 11 Sep
20%

Piasa Rainfall Statistics

September Rainfall

St. Louis Regional Airport (16.2 miles)

Total Rainfall 2026
17.5in
Daily Average 2026
0.1in
Wettest Day 25 July, 2026
2.5in
Wet Days 2026
43/248 (17%)
Total Rainfall August
1in
Daily Average August
0.03in
Wettest Day 16 August, 2026
0.5in
Wet Days August
7/31 (23%)
Total Rainfall September
0in
Daily Average September
0in
Wettest Day 1 September, 2026
0in
Wet Days September
–

Climate (2021–2025)

St. Louis Regional Airport (16.2 miles)

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Annual Average 2021–2025
18.9in
Monthly Average 2021–2026
1.7in
Daily Average 2021–2026
0.1in
Wettest Day 5 November, 2024
4.8in

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