Current Time in O'Fallon
United States · America/Chicago · Pop. 85,040
Sun & Daylight
Sunrise
06:48 AM
Sunset
07:04 PM
Solar Noon
12:56 PM
Day Length
-11.7h
Weather
🌤️
31.7°C
Mainly clear
Feels Like
33.2°C
Humidity
44%
Wind
9.6 km/h
UV Index
1.4
Timezone
- IANA ID
- America/Chicago
- Abbreviation
- CDT
- UTC Offset
- UTC-05:00
- DST Active
- Yes
- Next Change
- Nov 1, 2026
- Elevation
- 165m