Waukesha School District Snow Day Predictor

Q: How many snow days does Waukesha have built in?

4 for the 2026 to 2027 school year, listed on the calendar as “Snow Day Make-up: Day 1, 2, 3 & 4: No Make Up”.

Q: When is the last day of school for Waukesha?

June 9, 2027, on the district’s 2026 to 2027 calendar.

Q: How much snow does Waukesha get?

About 31.5 inches a winter at a NOAA weather station 1 mile away, averaged over 10 winters. Between December 1 and March 31 that brings 3.2 weekday mornings a year with 2 inches of new snow or more, and 1.4 with 4 inches or more.

Q: What was the biggest snow day near Waukesha?

9.5 inches on November 30, 2025, the largest single day at a NOAA weather station 1 mile away in 10 winters. The snowiest winter was 2022 to 2023, with 42.7 inches.

Q: How does the Waukesha snow day predictor work?

It reads the National Weather Service forecast for Waukesha through the night and the 5 to 8 am bus run, adds winter alerts and the Winter Storm Severity Index, and measures the snow against Waukesha’s own big snow morning: 4.5 inches, the top tenth of snowy weekday mornings at a NOAA weather station 1 mile away.

The next three school mornings

Will Waukesha close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Waukesha.

The Waukesha playbook

How Waukesha calls a snow day

4 built in snow days

On the 2026 to 2027 calendar, listed as “Snow Day Make-up: Day 1, 2, 3 & 4: No Make Up”.

“Snow Day Make-up Day 1, 2, 3 & 4: No Make Up Day 5: 6/10/26 (6/11 teachers)”

Source

Making up a lost day

First four snow days are not made up; a fifth is made up on June 10.

“Day 5: 6/10/26 (6/11 teachers)”

Source

The 2026 to 2027 calendar

First day September 1, 2026
Winter break Dec 23 to Jan 1
February break Feb 12 to Feb 15
Last day June 9, 2027

District calendar

Read from Waukesha’s own pages on October 8, 2026; the district site is sdw.waukesha.k12.wi.us.

Ten winters of school mornings

Waukesha’s snow record

31.5inches of snow a winter

3.2school mornings a winter with 2 in of new snow or more

1.4with 4 in or more

4.5 ina big snow morning in Waukesha: the top tenth of snowy school mornings

2.7Nov

6.1Dec

9.9Jan

7.9Feb

3.9Mar

Average snowfall by month, inches

Biggest day 9.5 in on November 30, 2025
Snowiest winter 2022 to 2023, 42.7 in
6 in mornings 0.4 a winter
1 in mornings 5.5 a winter

Measured at a NOAA weather station 1 mile 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.

The Wisconsin rule

How Wisconsin counts a lost day

Wisconsin requires hours, not days: 437 for kindergarten, 1,050 for grades 1 to 6 and 1,137 for grades 7 to 12.

The Wisconsin rules in the agency’s own words, and every Wisconsin district

Next door

Districts near Waukesha

District	Snow a winter	4 in mornings	Built in days
Pewaukee School DistrictPewaukee	37.5 in	1.3
Kettle Moraine School DistrictWales	37.5 in	1.3
Elmbrook School DistrictBrookfield	34.3 in	1.2	2
New Berlin School DistrictNew Berlin	37.8 in	2
Hamilton School DistrictSussex	40.4 in	1.1
Muskego-Norway School DistrictMuskego	31.5 in	1.3

The schools

27 schools

Every school in Waukesha follows the district’s call: one closing covers them all.

High

West High
North High
South High
eAchieve Academy - Wisconsin
Waukesha Engineering Preparatory Academy
Waukesha Academy of Health Professions
Waukesha East Alternative School
Waukesha Transition Academy
Riverview School

Middle

Butler Middle
Les Paul Middle
Horning Middle

Elementary

Waukesha STEM Academy
Banting Elementary
Rose Glen Elementary
Summit View Elementary
Bethesda Elementary
Lowell Elementary
Heyer Elementary
Hadfield Elementary
Prairie Elementary
Hawthorne Elementary
White Rock School
Hillcrest Elementary
Meadowbrook Elementary
eAchieve Elementary

Other schools

White Rock Campus

Questions

Waukesha snow day questions

How many snow days does Waukesha have built in?

When is the last day of school for Waukesha?

How much snow does Waukesha get?

What was the biggest snow day near Waukesha?

How does the Waukesha snow day predictor work?

How does Wisconsin handle snow days?

More winter

More for Wisconsin 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.Wisconsin winter forecastThe season ahead for Wisconsin: 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.