Air quality index71Moderate

Acceptable for most people; unusually sensitive people should take it easier outdoors.

Next 24 hours

US AQI

86Now
73
61
559 PM
49
43
4112 AM
38
35
413 AM
47
53
546 AM
56
57
469 AM
36
26
4312 PM
60
77
763 PM
75
75

Air quality outlook

Worst hour each day

Today98Moderate
Thu 877Moderate
Fri 949Good
Sat 1045Good
Sun 1145Good

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

Live radar

Open full map

About Houston weather

Houston is in Harris County, Texas, United States at 29.76°, -95.36°. Right now it’s 89° and clear; today’s high is 90° with a 15% chance of rain.

Texas encompasses a vast range of climates due to its enormous size, from humid subtropical conditions along the Gulf Coast to arid desert in the west, and from semi-tropical in the Rio Grande Valley to continental on the northern plains. The state is so large that it spans multiple climate zones, with annual rainfall ranging from over 55 inches in the east to less than 10 inches in far west Texas near El Paso.