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Wentzville, Missouri, 17,944 students in 22 schools

Wentzville R-IV School District Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in Wentzville R-IV, measured against Wentzville R-IV's own big snow morning of 2.4 inches.

The next three school mornings

Will Wentzville R-IV close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Wentzville.
The Wentzville R-IV playbook

How Wentzville R-IV calls a snow day

When the call comes

The district tries to decide by 5 a.m.; fast changing weather can push it later.

“The District makes every attempt to reach a decision regarding the closing of school by 5 a.m. However, there may be times when the weather conditions change rapidly in the early morning hours, and the decision could be delayed.”
Source

How families hear

By phone call, text message, email, the district website, social media, local TV and the district app.

“The WSD utilizes Focus to notify all households by phone, text, and email within minutes of an emergency or unplanned event that causes early dismissal or school cancelation.”
Inclement Weather

A 2 hour delay

On a delay morning every school starts 2 hours late.

“In the event of a 2-hour delayed start, buses will pick up approximately two hours later than normal, and classes will start two hours later than normal.”
Delay schedule

6 built in snow days

On the 2026 to 2027 calendar, listed as “emergency makeup days”.

“Six emergency makeup days have been built into the calendar.”
Source

Remote learning days

Wentzville R-IV has remote learning days in its winter plan.

“The WSD will utilize Alternative Methods of Instruction (AMI) to keep students engaged in learning and prevent extending the school year into the summer break.”
Source

Making up a lost day

Unused snow days after Memorial Day are forgiven; days beyond the built in ones extend the year.

“Any unused snow days after Memorial Day will be forgiven. Any additional days will extend the school year.”
Source

The 2026 to 2027 calendar

  • First day August 24, 2026
  • Winter break Dec 23 to Jan 4
  • Last day June 3, 2027
District calendar

Read from Wentzville R-IV’s own pages on October 8, 2026; the district site is wentzville.k12.mo.us.

Ten winters of school mornings

Wentzville R-IV’s snow record

14.4inches of snow a winter
1.2school mornings a winter with 2 in of new snow or more
0.3with 4 in or more
2.4 ina big snow morning in Wentzville R-IV: the top tenth of snowy school mornings
2school mornings a winter at 0 F or colder
1.6Nov
2.1Dec
5.8Jan
3.7Feb
1Mar
Average snowfall by month, inches
  • Biggest day 12.3 in on January 6, 2025
  • Snowiest winter 2018 to 2019, 28.6 in
  • 6 in mornings 0.2 a winter
  • 1 in mornings 2.3 a winter

Measured at a NOAA weather station 10.6 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.

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The Missouri rule

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

Next door

Districts near Wentzville R-IV

DistrictSnow a winter4 in mornings
Fort Zumwalt R-II School DistrictO'Fallon14.4 in0.3
Francis Howell R-III School DistrictO'Fallon14.4 in0.3
Troy R-III School DistrictTroy6.6 in0.4
St. Charles R-VI School DistrictSt Charles8.6 in0.4
Washington School DistrictWashington9.8 in0.4
Parkway C-2 School DistrictChesterfield9.8 in0.3
The schools

22 schools

Every school in Wentzville R-IV follows the district’s call: one closing covers them all.

High

  • Liberty High School, Lake St. Louis
  • Timberland High
  • North Point High School
  • Emil E. Holt Sr. High

Middle

  • Frontier Middle, O'Fallon
  • Wentzville South Middle
  • North Point Middle School
  • Wentzville Middle

Elementary

  • Wabash Elementary
  • Prairie View Elem., O'Fallon
  • Crossroads Elem., Dardenne Prairie
  • Duello Elem., Lake St Louis
  • Green Tree Elem., Lake St Louis
  • Lakeview Elementary
  • Discovery Ridge Elementary, O'Fallon
  • Journey Elementary
  • Stone Creek Elementary
  • Heritage Intermediate
  • Peine Ridge Elem.
  • Boone Trail Elem.
  • Heritage Primary

Other schools

  • Barfield Early Childhood Cntr, O'Fallon
Questions

Wentzville R-IV snow day questions

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More winter

More for Missouri snow days

Snow day predictorClosing and delay odds for any ZIP, with the snowiest districts in the country.Snow depth mapHow much snow is on the ground right now, measured, across the country.First snow datesWhen the first measurable snow usually lands where you live.Frozen pipesThe nights cold enough to freeze a pipe, and what to do before one.Snow plow trackerWhere the plows are during a storm, city by city.Missouri winter forecastThe season ahead for Missouri: snowfall, cold and the first snow.
A residential street under deep snow on a bright blue morning, cars parked along the curb buried into smooth white mounds, one set of tire tracks down the middle
The morning after a big one: cars buried to the mirrors and one set of tracks down the middle. A street like this is a closing, no debate. Photo, Fairfax, Virginia, January 2016: Jarek Tuszyński, CC BY 4.0

The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.