San Mateo, CA 94401 Air Quality

Air quality index50Good

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

050100150200300+

Next 24 hours

US AQI

1. 51Now
2. 49
3. 47
4. 4512 AM
5. 43
6. 40
7. 373 AM
8. 39
9. 40
10. 416 AM
11. 41
12. 40
13. 399 AM
14. 41
15. 42
16. 4312 PM
17. 45
18. 47
19. 493 PM
20. 48
21. 48
22. 476 PM
23. 44
24. 41

Air quality outlook

Worst hour each day

• Today61Moderate
• Sat 1749Good
• Sun 1839Good
• Mon 1939Good
• Tue 2039Good

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 94401

ZIP code 94401 is San Mateo, in San Mateo County, California. This forecast is for the centre of the ZIP area at 37.575°, -122.320°, in central San Mateo. Right now it’s 72° and clear; today’s high is 86° with a 0% chance of rain.

San Mateo, CA forecast

Nearby ZIP codes

94402 · San Mateo, CA94403 · San Mateo, CA94010 · Burlingame, CA94404 · San Mateo, CA94002 · Belmont, CA94128 · San Francisco, CA94065 · Redwood City, CA94030 · Millbrae, CA94070 · San Carlos, CA94066 · San Bruno, CA94080 · South San Francisco, CA94063 · Redwood City, CA

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