Saint Charles, MO 63303 Air Quality

Air quality index50Good

Air quality is great — a good day to be outside.

050100150200300+

Next 24 hours

US AQI

1. 47Now
2. 49
3. 51
4. 535 PM
5. 50
6. 46
7. 438 PM
8. 43
9. 42
10. 4111 PM
11. 41
12. 40
13. 392 AM
14. 40
15. 41
16. 415 AM
17. 41
18. 41
19. 418 AM
20. 41
21. 41
22. 4111 AM
23. 46
24. 52

Air quality outlook

Worst hour each day

• Today53Moderate
• Mon 1969Moderate
• Tue 2080Moderate
• Wed 2190Moderate
• Thu 2251Moderate

From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.

Live radar

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Radar Satellite Temperature Wind Feels like Air quality Lightning

About ZIP code 63303

ZIP code 63303 is Saint Charles, in Saint Charles County, Missouri. This forecast is for the centre of the ZIP area at 38.740°, -90.544°, 5 mi from central Saint Charles. Right now it’s 65° and clear; today’s high is 70° with a 0% chance of rain.

Saint Charles, MO forecast

Nearby ZIP codes

63146 · Saint Louis, MO63045 · Earth City, MO63043 · Maryland Heights, MO63376 · Saint Peters, MO63017 · Chesterfield, MO63044 · Bridgeton, MO63141 · Saint Louis, MO63304 · Saint Charles, MO63074 · Saint Ann, MO63005 · Chesterfield, MO63301 · Saint Charles, MO63042 · Hazelwood, MO

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