O'Fallon, MO Curfew Laws: Juvenile Curfew (2026)
Key Facts
- Weeknight curfew
- 11:00 p.m. to 5:00 a.m.
- Weekend curfew
- Midnight to 5:00 a.m.
- First offense
- Written notice to parent only
- Repeat parent fine
- Up to $500.00
- Third-plus violation
- Fine and/or 3 months jail
- Enforced by
- O'Fallon Police, City Prosecutor
Summary
O'Fallon bars minors from public places and business premises during set curfew hours: 11:00 p.m. to 5:00 a.m. Sunday through Thursday nights, and midnight to 5:00 a.m. after Friday and Saturday. Section 215.590 makes the minor's presence and a parent's knowing or negligent permission separate offenses, with escalating fines.
CURFEW HOURS Means: 1. 11:00 P.M. on any Sunday, Monday, Tuesday, Wednesday or Thursday until 5:00 A.M. of the following day. 2. 12:00 Midnight on any Friday and Saturday until 5:00 A.M. of the following day. ... A minor commits the offense of curfew violation if he/she is in any public place or on the premises of any establishment within the corporate limits of the City of O'Fallon during curfew hours. A parent or guardian of a minor commits the offense of allowing a minor to commit curfew violation if he/she knowingly permits, or by criminal negligence allows, the minor in any public place or on the premises of any establishment within the corporate limits of the City of O'Fallon during curfew hours.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4860992; v58 updated 2026-05-14; through 05-14-2026).
Full Breakdown
021, RSMo. A minor is not in violation if accompanied by a parent, guardian, or another responsible adult age 21 or older with express permission, if going directly to or from a job, if attending or returning from a supervised school, religious, or recreational activity without a detour, or if responding to a genuine emergency such as a fire, natural disaster, or car accident. When an O'Fallon Police Officer finds a minor violating the curfew, the officer must serve written notice on the parent, guardian, or custodial adult describing how the violation occurred and warning of liability for future violations before any fine attaches.
Minors themselves are handled under the laws and procedures that apply to juveniles rather than adult court. 00, up to three months in the St. Charles County Jail, or both, with each night treated as a separate offense. Enforcement against the parent or guardian is the responsibility of the City Prosecutor.
Violations & Fines
A first contact draws a written notice to the parent or guardian, not a fine. A repeat violation by the same minor after that notice exposes the parent, guardian, or custodial adult to a fine of up to $500.00 under Section 215.590(D)(2). A further violation after a guilty finding raises exposure to a fine of up to $500.00, up to three months in the St. Charles County Jail, or both, with each night counted separately.
Frequently Asked Questions
What are O'Fallon's curfew hours for minors?
Can my child be out past curfew for work or school events?
What happens the first time my child is caught breaking curfew?
Who prosecutes O'Fallon curfew violations?
Sources & Official References
Other rules in O'Fallon
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