San Mateo, CA 94403 Air Quality

Air quality index43Good

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

050100150200300+

Next 24 hours

US AQI

1. 45Now
2. 43
3. 41
4. 424 AM
5. 43
6. 43
7. 437 AM
8. 43
9. 43
10. 4310 AM
11. 42
12. 41
13. 381 PM
14. 35
15. 31
16. 374 PM
17. 42
18. 47
19. 447 PM
20. 41
21. 37
22. 3510 PM
23. 33
24. 31

Air quality outlook

Worst hour each day

• Today47Good
• Sun 1839Good
• Mon 1939Good
• Tue 2041Good
• Wed 2132Good

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

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Radar Satellite Temperature Wind Feels like Air quality Lightning

About ZIP code 94403

ZIP code 94403 is San Mateo, in San Mateo County, California. This forecast is for the centre of the ZIP area at 37.538°, -122.305°, 2 mi from central San Mateo. Right now it’s 61° and mostly clear; today’s high is 87° with a 0% chance of rain.

San Mateo, CA forecast

Nearby ZIP codes

94402 · San Mateo, CA94002 · Belmont, CA94404 · San Mateo, CA94401 · San Mateo, CA94065 · Redwood City, CA94070 · San Carlos, CA94010 · Burlingame, CA94061 · Redwood City, CA94063 · Redwood City, CA94030 · Millbrae, CA94128 · San Francisco, CA94027 · Atherton, CA

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