0in

Rain Today

Rain Last Hour
0in

Recorded at Belleville, Scott AFB/MidAmerica Airport Updated 1 hour 3 mins ago (4.4 miles away)

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Real-Time Extremes

Hottest 89.5 °F
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Coldest -36.5 °F
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Windiest 53mph
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Wettest (Last Hour) 0.6in
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Most Humid 100%
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Least Humid 18%
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Highest Pressure 1038.9 hPa
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Lowest Pressure 976 hPa
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O'Fallon Rainfall Forecast

Today 6 Dec
No Rain
Sun 7 Dec
20%
Mon 8 Dec
10%
Tue 9 Dec
No Rain
Wed 10 Dec
10%
Thu 11 Dec
25%
Fri 12 Dec
10%

O'Fallon Rainfall Statistics

December Rainfall

Belleville, Scott AFB/MidAmerica Airport (4.3 miles)

Total Rainfall 2025
32.5in
Daily Average 2025
0.1in
Wettest Day 18 October, 2025
2.7in
Wet Days 2025
86/340 (25%)
Total Rainfall November
1.4in
Daily Average November
0.05in
Wettest Day 29 November, 2025
0.7in
Wet Days November
6/30 (20%)
Total Rainfall December
0.05in
Daily Average December
0.01in
Wettest Day 1 December, 2025
0.05in
Wet Days December
1/6 (17%)

Climate (2010–Present)

Belleville, Scott AFB/MidAmerica Airport (4.3 miles)

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Annual Average 2020–2024
35.1in
Monthly Average 2020–2025
2.8in
Daily Average 2020–2025
0.1in
Wettest Day 11 May, 2022
6.4in

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