UV Index Today in Louisville, Kentucky (KY)

Friday, May 22, 2026 -2:40 PMEDT (GMT-4)

The UV Index in Louisville, Kentucky (KY) right now is 0.2. This reading was last updated at 2:00 PM EDT, about 40 minutes ago. The UV Index at3:00 PM EDT, in about 19 minutes from now, is expected to be 0.4.

The maximum UV Index today in Louisville was 1.4 at 10:00 AM EDT,4 hours and 40 minutes ago. The maximum UV Index tomorrow is expected to be 1.7 at 6:00 PM EDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
1.4
10:00 AM EDT
Low

Tomorrow

May 23
1.7
6:00 PM EDT
Low

UV Index Today Hourly

May 22

The UV Index for Louisville, Kentucky (KY) peaks at 1.4 today at 10:00 AM EDT, classified as Low risk.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMEastern Daylight Time (EDT, GMT-4)Now: 2:40 PM00.30.31.40.50.41.20.20.40.30.20.10.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

Data shows Louisville, Kentucky (KY)'s UV Index climbing to 1.7 tomorrow, peaking at6:00 PM EDT under Low conditions.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 PMEastern Daylight Time (EDT, GMT-4)00.10.10.20.40.71.40.90.71.11.41.70.60.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

May 21, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.1
Low
9:00 AM0.4
Low
10:00 AM0.8
Low
11:00 AM1.3
Low
12:00 PM3
Moderate
1:00 PM4
Moderate
2:00 PM3.3
Moderate
3:00 PM2.6
Moderate
4:00 PM2
Low
5:00 PM1.2
Low
6:00 PM0.8
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 22, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM0.3
Low
10:00 AM1.4
Low
11:00 AM0.5
Low
12:00 PM0.4
Low
1:00 PM1.2
Low
2:00 PM0.2
Low
3:00 PM0.4
Low
4:00 PM0.3
Low
5:00 PM0.2
Low
6:00 PM0.1
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 23, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.1
Low
9:00 AM0.1
Low
10:00 AM0.2
Low
11:00 AM0.4
Low
12:00 PM0.7
Low
1:00 PM1.4
Low
2:00 PM0.9
Low
3:00 PM0.7
Low
4:00 PM1.1
Low
5:00 PM1.4
Low
6:00 PM1.7
Low
7:00 PM0.6
Low
8:00 PM0.2
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 24, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.5
Low
9:00 AM1.5
Low
10:00 AM2.9
Moderate
11:00 AM3.1
Moderate
12:00 PM3.1
Moderate
1:00 PM3.9
Moderate
2:00 PM4.7
Moderate
3:00 PM3.8
Moderate
4:00 PM1.8
Low
5:00 PM0.3
Low
6:00 PM0.2
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 25, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.1
Low
9:00 AM0.2
Low
10:00 AM0.3
Low
11:00 AM0.6
Low
12:00 PM1
Low
1:00 PM1.5
Low
2:00 PM1.6
Low
3:00 PM0.7
Low
4:00 PM0.9
Low
5:00 PM0.6
Low
6:00 PM0.2
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

Maximum UV Index Today
Data Source: National Oceanic and Atmospheric Administration (NOAA)