St. Louis City School District Snow Day Predictor
The odds of a closing or a delay on the next three school mornings in St. Louis, measured against St. Louis's own big snow morning of 1.7 inches.
Will St. Louis close tomorrow?
How St. Louis calls a snow day
When the call comes
Final decision targeted by 5 a.m. on the day.
“Target Notification Time: We aim to share our final decision regarding school operations by 5 a.m. on the day in question.”Source
How families hear
By the district website, local TV, radio, email, phone call and text message.
“Communication Channels: Information will be disseminated through multiple channels: the District website ( www.SLPS.org ), local media outlets, email, and automated calls/text messages for those who opt-in.”Inclement Weather and Emergency Guidelines - Saint Louis Public School District
Remote learning days
St. Louis has remote learning days in its winter plan.
“AMI Day: A day when we teach and work from home due to various conditions, allowing instruction to continue.”Source
Making up a lost day
June 1 to 4, 2027 are set aside as snow and make-up days if needed.
Make up dates: Jun 1, Jun 2, Jun 3, Jun 4.
“1–4 | Snow/Makeup Days (if needed)”Source
The 2026 to 2027 calendar
- First day August 24, 2026
- Winter break Dec 21 to Jan 1
- Last day May 27, 2027
Read from St. Louis’s own pages on October 8, 2026; the district site is slps.org.
St. Louis’s snow record
- Biggest day 6.4 in on January 9, 2025
- Snowiest winter 2018 to 2019, 16.4 in
- 6 in mornings 0.1 a winter
- 1 in mornings 0.8 a winter
Measured at a NOAA weather station 4.1 miles away. Mornings are the 7 am snow reading on a weekday from December 1 through March 31, over the ten winters from 2016 to 2017 through 2025 to 2026, from NOAA GHCN Daily.
How Missouri counts a lost day
Missouri requires at least 1,044 hours of actual pupil attendance, plus 36 make-up hours built into the calendar for bad weather. A district must make up the first 36 weather hours and half of any hours beyond that, but never more than 60 make-up hours in total; anything past that is excused.
The Missouri rules in the agency’s own words, and every Missouri district
Districts near St. Louis
| District | Snow a winter | 4 in mornings |
|---|---|---|
| Riverview Gardens School DistrictSt Louis | 12.6 in | 0.3 |
| Webster Groves School DistrictWebster Groves | 11.9 in | 0.3 |
| Ritenour School DistrictSt Louis | 12.6 in | 0.3 |
| Ladue School DistrictSt Louis | 11.9 in | 0.3 |
| Mehlville R-IX School DistrictSt Louis | 11.9 in | 0.3 |
| Lindbergh School DistrictSt. Louis | 11.9 in | 0.3 |
68 schools, the 40 largest here
Every school in St. Louis follows the district’s call: one closing covers them all.
High
- Gateway High
- Vashon High
- McKinley Class. Leadership Ac.
- Miller Career Academy
- Roosevelt High
- Beaumont Cte High School
- Soldan International Studies
- Central Visual/Perf. Arts High
- Collegiate School of Med/Bio, St. Louis
- Metro High
- Sumner High
Middle
- Gateway Middle
- Carr Lane Vpa Middle
- Yeatman-Liddell Middle School
- Compton-Drew Ilc Middle
- Busch MS Character Athletics
- Long Middle Community Ed. Ctr.
- Acad of Entre Stdy@louverture, St. Louis
Elementary
- Gateway Elem.
- Mullanphy Botanical Gardens
- Mason Elem.
- Buder Elem.
- Dewey Sch.-Internat'l. Studies
- Woerner Elem
- Cole Elem.
- Earl Nance Sr. Elem.
- Hickey Elem.
- Mallinckrodt A.b.i. Elem.
- Shaw Visual/Perf. Arts Ctr.
- Mann Elem.
- Washington Montessori
- Woodward Elem.
- Nahed Chapman New American Aca, St. Louis
- Lyon at Blow Elem.
- Laclede Elem.
- Lexington Elem.
- Hamilton Elem. Community Ed.
- Betty Wheeler Classical Jr. Ac
Other schools
- Stix Early Childhood Ctr.
- Wilkinson Early Childhood Ctr.
St. Louis snow day questions
More for Missouri snow days
The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.