UV Index Today in Louisville, Kentucky (KY)

Tuesday, April 7, 2026 - 4:52 AM EDT (GMT-4)

The UV Index in Louisville, Kentucky (KY) right now is 0. This reading was last updated at 4:00 AM EDT, about 52 minutes ago. The UV Index at 5:00 AM EDT, in about 7 minutes from now, is expected to be 0.

The maximum UV Index today in Louisville is expected to be 6.3 at 2:00 PM EDT, 9 hours and 7 minutes from now. The maximum UV Index tomorrow is expected to be 6.6 at 2:00 PM EDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

April 7
6.3
2:00 PM EDT
High

Tomorrow

April 8
6.6
2:00 PM EDT
High

UV Index Today Hourly

April 7

The UV Index for Louisville, Kentucky (KY) peaks at 6.3 today at 2:00 PM EDT, classified as High risk.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMEastern Daylight Time (EDT, GMT-4) Now: 4:52 AM00.20.71.83.456.16.35.64.12.51.10.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

April 8

Data shows Louisville, Kentucky (KY)'s UV Index climbing to 6.6 tomorrow, peaking at 2:00 PM EDT under High conditions.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMEastern Daylight Time (EDT, GMT-4) 00.20.71.93.65.16.46.65.84.22.51.10.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

April 6, 2026
Time UV Index Risk
12:00 AM 0
Low
1:00 AM 0
Low
2:00 AM 0
Low
3:00 AM 0
Low
4:00 AM 0
Low
5:00 AM 0
Low
6:00 AM 0
Low
7:00 AM 0
Low
8:00 AM 0.2
Low
9:00 AM 0.8
Low
10:00 AM 2
Low
11:00 AM 3.8
Moderate
12:00 PM 5.5
High
1:00 PM 6.6
High
2:00 PM 6.8
High
3:00 PM 5.9
High
4:00 PM 4.3
Moderate
5:00 PM 2.6
Moderate
6:00 PM 1.2
Low
7:00 PM 0.3
Low
8:00 PM 0
Low
9:00 PM 0
Low
10:00 PM 0
Low
11:00 PM 0
Low

April 7, 2026
Time UV Index Risk
12:00 AM 0
Low
1:00 AM 0
Low
2:00 AM 0
Low
3:00 AM 0
Low
4:00 AM 0
Low
5:00 AM 0
Low
6:00 AM 0
Low
7:00 AM 0
Low
8:00 AM 0.2
Low
9:00 AM 0.7
Low
10:00 AM 1.8
Low
11:00 AM 3.4
Moderate
12:00 PM 5
Moderate
1:00 PM 6.1
High
2:00 PM 6.3
High
3:00 PM 5.6
High
4:00 PM 4.1
Moderate
5:00 PM 2.5
Moderate
6:00 PM 1.1
Low
7:00 PM 0.3
Low
8:00 PM 0
Low
9:00 PM 0
Low
10:00 PM 0
Low
11:00 PM 0
Low

April 8, 2026
Time UV Index Risk
12:00 AM 0
Low
1:00 AM 0
Low
2:00 AM 0
Low
3:00 AM 0
Low
4:00 AM 0
Low
5:00 AM 0
Low
6:00 AM 0
Low
7:00 AM 0
Low
8:00 AM 0.2
Low
9:00 AM 0.7
Low
10:00 AM 1.9
Low
11:00 AM 3.6
Moderate
12:00 PM 5.1
Moderate
1:00 PM 6.4
High
2:00 PM 6.6
High
3:00 PM 5.8
High
4:00 PM 4.2
Moderate
5:00 PM 2.5
Moderate
6:00 PM 1.1
Low
7:00 PM 0.3
Low
8:00 PM 0
Low
9:00 PM 0
Low
10:00 PM 0
Low
11:00 PM 0
Low

April 9, 2026
Time UV Index Risk
12:00 AM 0
Low
1:00 AM 0
Low
2:00 AM 0
Low
3:00 AM 0
Low
4:00 AM 0
Low
5:00 AM 0
Low
6:00 AM 0
Low
7:00 AM 0
Low
8:00 AM 0.2
Low
9:00 AM 0.7
Low
10:00 AM 1.9
Low
11:00 AM 3.4
Moderate
12:00 PM 5.1
Moderate
1:00 PM 6.4
High
2:00 PM 6.6
High
3:00 PM 5.8
High
4:00 PM 4.3
Moderate
5:00 PM 2.6
Moderate
6:00 PM 1.2
Low
7:00 PM 0.4
Low
8:00 PM 0
Low
9:00 PM 0
Low
10:00 PM 0
Low
11:00 PM 0
Low

April 10, 2026
Time UV Index Risk
12:00 AM 0
Low
1:00 AM 0
Low
2:00 AM 0
Low
3:00 AM 0
Low
4:00 AM 0
Low
5:00 AM 0
Low
6:00 AM 0
Low
7:00 AM 0
Low
8:00 AM 0.2
Low
9:00 AM 0.8
Low
10:00 AM 2.1
Low
11:00 AM 3.8
Moderate
12:00 PM 5.6
High
1:00 PM 6.8
High
2:00 PM 7
High
3:00 PM 6.1
High
4:00 PM 4.5
Moderate
5:00 PM 2.7
Moderate
6:00 PM 1.1
Low
7:00 PM 0.3
Low
8:00 PM 0
Low
9:00 PM 0
Low
10:00 PM 0
Low
11:00 PM 0
Low
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

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