0in

Rain Today

Rain Last Hour
0in

Recorded at St. Louis, Spirit Of St. Louis Airport Updated 25 mins ago (10.9 miles away)

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Real-Time Extremes

Hottest 91.3 °F
Phoenix, Phoenix Sky Harbor International Airport, AZ
Coldest 28.3 °F
Barrow, Wiley Post-Will Rogers Memorial Airport, AK
Windiest 27.5mph
Wallops Flight Facility Airport, VA
Wettest (Last Hour) 0.4in
Artesia Municipal Airport, NM
Most Humid 100%
North Palm Beach County General Aviation Airport, FL
Least Humid 16%
Bullhead City, Laughlin/Bullhead International Airport, AZ
Highest Pressure 1038.6 hPa
Salida - Monarch Pass, CO
Lowest Pressure 990.5 hPa
Shenandoah Municipal, IA

Trending Locations

Portola, CA 96122

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O'Fallon Rainfall Forecast

Today 23 Sep
No Rain
Thu 24 Sep
No Rain
Fri 25 Sep
No Rain
Sat 26 Sep
15%
Sun 27 Sep
25%
Mon 28 Sep
10%
Tue 29 Sep
40%

O'Fallon Rainfall Statistics

September Rainfall

St. Louis, Spirit Of St. Louis Airport (10.6 miles)

Total Rainfall 2026
28.1in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
2.2in
Wet Days 2026
69/266 (26%)
Total Rainfall August
0.2in
Daily Average August
0.01in
Wettest Day 1 August, 2026
0.1in
Wet Days August
7/31 (23%)
Total Rainfall September
1.3in
Daily Average September
0.1in
Wettest Day 20 September, 2026
1.2in
Wet Days September
3/23 (13%)

Climate (2021–2025)

St. Louis, Spirit Of St. Louis Airport (10.6 miles)

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Annual Average 2021–2025
38.3in
Monthly Average 2021–2026
3.2in
Daily Average 2021–2026
0.1in
Wettest Day 4 April, 2025
4.2in

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