Air quality index85Moderate

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

Next 24 hours

US AQI

90Now
85
80
631 AM
46
29
354 AM
40
45
437 AM
41
39
4210 AM
44
47
521 PM
56
61
614 PM
61
61
467 PM
32
18

Air quality outlook

Worst hour each day

Today96Moderate
Thu 880Moderate
Fri 998Moderate
Sat 1096Moderate
Sun 1155Moderate

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

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About Louisville weather

Louisville is in Jefferson County, Kentucky, United States at 38.25°, -85.76°. Right now it’s 70° and clear; today’s high is 82° with a 1% chance of rain.

Kentucky has a humid subtropical climate with four distinct seasons and moderate precipitation throughout the year. The state receives approximately 45 to 50 inches of rainfall annually, supporting its famous bluegrass pastures and horse farming industry. Temperatures are moderated by the surrounding hills and river valleys, though extremes from both Arctic air and Gulf moisture are common.