What Time is Sunrise and Sunset in O'Fallon, IL?
Here are today and tomorrow's sunrise and sunset times in O'Fallon, Illinois. You'll also find a sunrise and sunset calendar for O'Fallon at the bottom of the page.
Today Thursday, June 4, 2026
Sunrise
5:37 am
Sunrise today in O'Fallon was at 5:37 AM CDT ().
Sunset
8:21 pm
Sunset today in O'Fallon will be at 8:21 PM CDT ().
Tomorrow Friday, June 5, 2026
Sunrise
5:37 am
Sunrise tomorrow in O'Fallon will be at 5:37 AM CDT ().
Sunset
8:21 pm
Sunset tomorrow in O'Fallon will be at 8:21 PM CDT ().
Photos Sunrise and Sunset Photos of O'Fallon
Sunrise and sunset photos of O'Fallon, IL from Flickr.
Calendar O'Fallon Sunrise and Sunset Calendar
Sunrise calendar and sunset calendar for O'Fallon, Illinois. Discover O'Fallon, IL's detailed solar schedule, including day length, dawn, dusk, and solar noon times. Easily explore any month and year with our interactive calendar.
| Date | Dawn | Sunrise | Solar Noon | Sunset | Dusk | Day Length |
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FAQ Frequently Asked Questions about O'Fallon
When is the shortest day in O'Fallon, IL?
The shortest day of the year in O'Fallon, Illinois (winter solstice) will be on Tuesday, December 22, 2026. In 2027 the shortest day will be on December 22, 2027.
How long is the shortest day in O'Fallon, IL?
The shortest day of 2026 in O'Fallon, Illinois will be 9 hours and 27 minutes of daylight on December 22 (winter solstice).
When is the longest day in O'Fallon, IL?
The longest day in O'Fallon, Illinois (summer solstice) will be on Sunday, June 21, 2026. Next year the longest day will be on June 21, 2027.
How long is the longest day in O'Fallon, IL?
The longest day of 2026 in O'Fallon, Illinois will have 14 hours and 51 minutes of daylight on June 21 (summer solstice).
How much more daylight does O'Fallon, IL get in summer vs winter?
O'Fallon, Illinois gets 5 hours and 23 minutes more daylight on the summer solstice than the winter solstice. The longest day has 14 hours and 51 minutes of daylight while the shortest day has only 9 hours and 27 minutes. The average day length throughout the year is 12 hours and 11 minutes.
When is the earliest sunrise in O'Fallon, IL?
The earliest sunrise time of 2026 in O'Fallon, Illinois will be on Sunday, June 14, 2026 at 5:36 AM.
When is the latest sunrise in O'Fallon, IL?
The latest sunrise time of 2026 in O'Fallon, Illinois will be on Saturday, October 31, 2026 at 7:26 AM.
When is the latest sunset in O'Fallon, IL?
The latest sunset time in O'Fallon, Illinois will be on Sunday, June 28, 2026 at 8:29 PM.
When is the earliest sunset in O'Fallon, IL?
The earliest sunset time in O'Fallon, Illinois will be on Monday, December 7, 2026 at 4:39 PM.
Cities near O'Fallon: Collinsville, Fairview Heights, Scott Air Force Base, Shiloh, Swansea.
National Parks near O'Fallon: Jefferson National Expansion Memorial, Ulysses S Grant National Historic Site.
Use data from this page using our JSON API: https://api.sunrisesunset.io/json?lat=38.59227&lng=-89.91121