Sandwich Community Unit School District 430 snow day calculator
Will Sandwich Community Unit School District 430 close tomorrow?
District facts
- Official name
- Sandwich Community Unit School District 430
- Schools
- 6
- Grades
- pre-K to grade 12
- Office
- Sandwich, IL
- Official site
- www.sandwich430.org
- Snow a year
- 30 in. · 3.5 days with 3+ in.
- NCES ID
- 1735370
National Center for Education Statistics (CCD 2024–25, EDGE GRF25); NOAA 1991–2020 normals. Not affiliated with the district.
Past winter days
We record what happened on each storm day (our chance, and whether Sandwich Community Unit School District 430 closed, delayed or opened) from parent reports. The first days appear here this winter. Report today's decision.
What it takes to close Sandwich Community Unit School District 430
- Snow line
- About 7 in. of overnight snow
- Ice line
- About .18 in. of ice
- Cold line
- −27°F wind chill at bus time (normal winter low 18°F)
- Counties
- LaSalle County, Kendall County, DeKalb County, Grundy County
Levels where a closure becomes likely in our model for ZIP 60548, from Sandwich Community Unit School District 430's local snow normal: 3.5 days a year with 3 or more inches. These are model estimates, not the district's policy.
Nearby districts
| District | Snow a year | Snow line |
|---|---|---|
| Yorkville Community Unit School District 115 | 28 in. | 7.5 in. |
| Aurora West Unit School District 129 | 28 in. | 7.5 in. |
| Oswego Community Unit School District 308 | 28 in. | 7.5 in. |
| DeKalb Community Unit School District 428 | 33 in. | 7.5 in. |
| Kaneland Community Unit School District 302 | 39 in. | 8 in. |
| Aurora East Unit School District 131 | 28 in. | 7.5 in. |
ZIP codes Sandwich Community Unit School District 430 serves
60537, 60541, 60545, 60548, 60551, 60552
ZIP codes that overlap the district's boundary (NCES EDGE GRF25). Some are shared with neighboring districts.
Check a different ZIP
Loading tonight's forecast…
Snow by hour
From the National Weather Service forecast, updated hourly. Estimate only. Your district makes the call.
Sandwich Community Unit School District 430 snow day questions
Is Sandwich Community Unit School District 430 closed tomorrow?
The card above shows tomorrow's chance that Sandwich Community Unit School District 430 closes or delays school, from tonight's National Weather Service forecast for the district's area. It is an estimate; only the district can announce a closure, usually on its website, by text or phone alert, and through local TV and radio.
How much snow does it take to close Sandwich Community Unit School District 430?
There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 7 inches of overnight snow as the level where closures become likely around ZIP 60548, which averages 30 inches of snow a year (NOAA 1991–2020 normals).
When does Sandwich Community Unit School District 430 announce snow days?
Districts usually decide early in the morning, after crews check the roads, and sometimes the evening before when a big storm is certain. Check the district's official website and alerts for the decision; we don't report official closings.
Guides
- How much snow cancels school?
From one inch in Atlanta to a foot in Buffalo: what it takes in every state, with NOAA data.
- What time are snow days announced?
When districts decide, how they tell families, and when to check the calculator.
- How school districts decide snow days
Who makes the call, what they check before dawn, and why neighboring districts disagree.
- Snow day vs. delay vs. early dismissal
What each one means, when districts use them, and how the calculator scores each.