Jefferson Junior High School
Bell Schedule
Regular Bell Schedule
| 1st | 8:00 - 8:48 |
| 2nd | 8:51 - 9:33 |
| 3rd | 9:36 - 10:18 |
| 4th | 10:21 - 11:03 |
| 5th | 11:06 - 11:48 |
| 6th | 11:51 - 12:33 |
| 7th | 12:36 - 1:18 |
| 8th | 1:21 - 2:03 |
| 9th | 2:06 - 2:50 |
Quarter/Trimester Date Ranges
| Trimesters |
| T1 8/14 - 11/6 |
| T2 11/7- 2/17 |
| T3 2/18 - 5/22 |
Early Dismissal Schedule
| 1st | 8:00 - 8:20 |
| 2nd | 8:23 - 8:41 |
| 3rd | 8:44 - 9:03 |
| 4th | 9:06 - 9:25 |
| 5th | 9:28 - 9:47 |
| 6th | 9:50 - 10:09 |
| 7th | 10:12 - 10:31 |
| 8th | 10:34 - 10:53 |
| 9th | 10:56 - 11:15 |
| School is dismissed at 11:15 a.m. Please note that staff in-service is being conducted from 1:00 pm to 3:00 pm on these days. The main office maintains its regular hours. |
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Early Dismissal Date: 5/1/2026
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School Closings
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School Closures
Naperville 203 may implement e-Learning Days instead of enacting a school closure for inclement weather. In the unlikely event a school or District closure must occur, it will be announced as soon as possible on the District website, through the District’s Talk203 email system and social media channels. In addition, school closures are reported to the Emergency Closing Center, which broadcasts the information on the following Chicago stations: WGN-AM (720), WBBM-AM (780), and CBS-TV (2), NBC-TV (5), ABC-TV (7), WGN-TV (9), FOX-TV, and CLTV cable. Families may also call the District Administrative Offices – (630) 420-6300 – to hear a recorded telephone message concerning a school closing.