Air quality in

Sioux City

Iowa

Air quality right now

Official

Good air right now.

Ozone is driving this official reading.

Updated Sun, Aug 30, 12:00 PM · Sioux City, IA-NE-SD

38US AQI · Good

What’s shaping the air

Ozone is leading.

This pollutant is contributing the most to the current AQI.

What comes next

Current AirNow reading

Official
Now · 12 PM38GoodUS AQIozone

No fresh outlook yet.

Complete city forecast

See the full Sioux City forecast

Current weather · next 24 hours · five days · radar

Plan around it

Find your best time in Sioux City.

Pick an activity and we’ll check the conditions.

Fine-tune this plan Optional
How long will you be outside?1 hr
How far ahead should we look?The next 3 days
What times work for you?6:00 AM–9:00 PM

The full activity must fit between these times.

What should we be extra careful about? Optional

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How we knowSources, updates, and important limits

Different instruments. One honest answer.

Official monitoring is preferred when it is current and close enough. Modeled estimates stay clearly labeled.

Sources used here
AirNow · participating air agencies · preliminary real-time US AQI
Reporting area
Sioux City · About 4 miles from the evaluation point.

Local pattern

Sioux City has recurring outdoor-condition questions worth checking with current official and modeled data plus durable local context.

Read the full source methodology Understand this signal