Snow Day Calculator for Idaho
Will schools in Idaho be closed tomorrow?
Tomorrow by city
| City | Closure | Link |
|---|---|---|
| BoiseBoise City Independent School District 1 | — | — |
Chance for each city's main ZIP code. Your district may differ: enter your ZIP above.
Tomorrow by county
- 0–29%Unlikely
- 30–59%Possible
- 60–79%Likely
- 80–95%Very likely
- No school
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Snow by hour
From the National Weather Service forecast, updated hourly. Estimate only. Your district makes the call.
How much snow Idaho gets
| Place | Population | Snow a year | Days 3+ in. |
|---|---|---|---|
| Boise | 237,963 | 18 in. | 1.2 |
| Meridian | 139,740 | 18 in. | 1.2 |
| Nampa | 117,350 | 10 in. | 1.0 |
| Caldwell | 73,088 | 10 in. | 1.0 |
| Idaho Falls | 69,523 | 15 in. | 1.6 |
NOAA NCEI U.S. Climate Normals 1991–2020, nearest station at a similar elevation. Population: U.S. Census Bureau, 2024 estimates. Across Idaho, yearly snowfall ranges from 6 to 177 inches.
Cities in Idaho
School districts (30)
- American Falls Joint School District 381
- Bear Lake County School District 33
- Blackfoot School District 55
- Blaine County School District 61
- Bonneville Joint School District 93
- Boundary County School District 101
- Cassia County Joint School District 151
- Coeur d'Alene School District 271
- Fremont County Joint School District 215
- Idaho Falls School District 91
- Jefferson County Joint School District 251
- Jerome Joint School District 261
- Lake Pend Oreille School District 84
- Lakeland Joint School District 272
- Madison School District 321
- Marsh Valley Joint School District 21
- McCall-Donnelly Joint School District 421
- Minidoka County Joint School District 331
- Moscow School District 281
- Oneida County School District 351
- Orofino Joint School District 171
- Pocatello School District 25
- Post Falls School District 273
- Preston Joint School District 201
- Shelley Joint School District 60
- Snake River School District 52
- St. Maries Joint School District 41
- Sugar-Salem Joint School District 322
- Teton County School District 401
- Twin Falls School District 411
Idaho snow day questions
Will schools in Idaho be closed tomorrow?
Enter your ZIP code above for your district's chance of a closure or delay tomorrow, or pick a city below. Each district decides for itself; the calculator estimates the chance from tonight's National Weather Service forecast and updates hourly from the afternoon until morning.
How much snow falls in Idaho?
It depends a lot on where you are: average yearly snowfall across Idaho ranges from 6 to 177 inches (NOAA 1991–2020 normals at weather stations near 280 ZIP codes). Among the largest places, Boise averages 18 inches.
How much snow closes schools in Idaho?
It varies by district and by how often each area gets snow. In the snowiest parts of Idaho, closures usually take several inches overnight; in places that rarely see snow, an inch or two can close schools. The calculator scales each storm by the local NOAA normal for your ZIP.
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.
- Signs of a snow day tomorrow
The forecast signs that really matter, and the folklore that doesn't.