0.04in

Rain Today

Rain Last Hour
0in

Recorded at St. Louis Regional Airport Updated 2 hours 42 mins ago (8.2 miles away)

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Real-Time Extremes

Hottest 84.1 °F
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Coldest -11.3 °F
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Windiest 53mph
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Wettest (Last Hour) 0.1in
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Most Humid 100%
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Least Humid 10%
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Highest Pressure 1031.8 hPa
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Lowest Pressure 988 hPa
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Alton Rainfall Forecast

Today 3 Apr
55%
Sat 4 Apr
95%
Sun 5 Apr
No Rain
Mon 6 Apr
No Rain
Tue 7 Apr
20%
Wed 8 Apr
5%
Thu 9 Apr
20%

Alton Rainfall Statistics

April Rainfall

St. Louis Regional Airport (8.1 miles)

Total Rainfall 2026
6.1in
Daily Average 2026
0.1in
Wettest Day 7 March, 2026
1.5in
Wet Days 2026
10/93 (11%)
Total Rainfall March
5.7in
Daily Average March
0.2in
Wettest Day 7 March, 2026
1.5in
Wet Days March
7/31 (23%)
Total Rainfall April
–
Daily Average April
–
Wettest Day 3 April, 2026
–
Wet Days April
–

Climate (2010–Present)

St. Louis Regional Airport (8.1 miles)

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Annual Average 2021–2025
18.9in
Monthly Average 2021–2026
1.6in
Daily Average 2021–2026
0.1in
Wettest Day 5 November, 2024
4.8in

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