Sioux City Community School District Snow Day Predictor
The odds of a closing or a delay on the next three school mornings in Sioux City, measured against Sioux City's own big snow morning of 4.2 inches.
Will Sioux City close tomorrow?
How Sioux City calls a snow day
How families hear
By phone call, text message, email, the district website, local TV, social media and the district app.
“Alerts can also be found on the homepage of the website, local news stations, and social media, as well as the District’s mobile app.”CANCELLATIONS/EARLY DISMISSALS/LATE STARTS - Sioux City Schools
A 2 hour delay
On a delay morning every school starts 2 hours late.
“Due to the weather, Sioux City Community Schools will have a two-hour late start tomorrow, Tuesday, January 21. School will begin at the following times: Elementary School - 10:30 am; Middle School - 9:45 am; and High School - 9:55 am.”Delay schedule
Making up a lost day
Snow days are added to the end of the school year if needed.
“Snow make up days will be added to the end of the year if needed.”Source
The 2026 to 2027 calendar
- First day August 24, 2026
- Winter break Dec 22 to Jan 1
- Last day May 26, 2027
Recent snow days
- 2025 to 2026. No school January 23, 2026 for extreme cold, plus two-hour late starts on January 26 and March 16.
“Due to the extreme cold, there will be no school on Friday, January 23 in the Sioux City Community School District. Activities will be held as scheduled. Thank you.”
District notice - 2024 to 2025. No school on January 20, February 19 and 20, March 5 and March 19, 2025 for weather, plus several two-hour late starts.
“Due to the weather, there will be no school today - Wednesday, March 5 - in the Sioux City Community School District. Thank you!”
District notice
Read from Sioux City’s own pages on October 8, 2026; the district site is siouxcityschools.org.
Sioux City’s snow record
More 4 inch school mornings than 53% of the 323 Iowa districts with a station record.
- Biggest day 11.9 in on January 23, 2018
- Snowiest winter 2017 to 2018, 46.1 in
- 6 in mornings 0.5 a winter
- 1 in mornings 5.6 a winter
Measured at a NOAA weather station 7 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 Iowa counts a lost day
Iowa requires at least 180 days or 1,080 hours of instruction, as the board chooses. When a board extends the calendar to make up weather closures, it may excuse seniors who have already met graduation requirements.
The Iowa rules in the agency’s own words, and every Iowa district
Districts near Sioux City
| District | Snow a winter | 4 in mornings |
|---|---|---|
| Council Bluffs Community School DistrictCouncil Bluffs | 17.1 in | 0.8 |
| Lewis Central Community School DistrictCouncil Bluffs | 17.1 in | 0.8 |
| Fort Dodge Community School DistrictFort Dodge | 38.3 in | 1.7 |
| Dallas Center-Grimes Community School DistrictGrimes | 30.8 in | 1.4 |
| Waukee Community School DistrictWaukee | 27.8 in | 0.9 |
| Ames Community School DistrictAmes | 28.3 in | 1.3 |
21 schools
Every school in Sioux City follows the district’s call: one closing covers them all.
High
- North High School
- East High School
- West High School
Middle
- North Middle School
- East Middle School
- West Middle School
Elementary
- Morningside Elementary
- Spalding Park Elementary
- Liberty Elementary School
- Perry Creek Elementary School
- Irving Elementary School
- Leeds Elementary School
- Loess Hills Elementary
- Bryant Elementary School
- Unity Elementary School
- Hunt Elementary School
- Nodland Elementary School
- Sunnyside Elementary School
- Riverside Elementary School
Other schools
- Irving Preschool
- Clark Early Childhood Center
Sioux City snow day questions
More for Iowa snow days
The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.