UV Index Today in Louisville, Kentucky (KY)

Saturday, August 15, 2026 -3:29 AM EDT (GMT-4)

The UV Index in Louisville, Kentucky (KY) right now is 0. This reading was last updated at 3:00 AM EDT, about 29 minutes ago. The UV Index at4:00 AM EDT, in about 30 minutes from now, is expected to be 0.

The maximum UV Index today in Louisville is expected to be 8.5 at 2:00 PM EDT,10 hours and 30 minutes from now. The maximum UV Index tomorrow is expected to be 8.7 at 2:00 PM EDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 15
8.5
2:00 PM EDT
Very High

Tomorrow

August 16
8.7
2:00 PM EDT
Very High

UV Index Today Hourly

August 15

The UV Index for Louisville, Kentucky (KY) peaks at 8.5 today at 2:00 PM EDT, classified as Very High risk.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMEastern Daylight Time (EDT, GMT-4)Now: 3:29 AM00.31.12.64.76.88.28.57.65.73.61.80.60
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 16

Data shows Louisville, Kentucky (KY)'s UV Index climbing to 8.7 tomorrow, peaking at2:00 PM EDT under Very High conditions.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMEastern Daylight Time (EDT, GMT-4)00.21.11.556.98.68.77.663.71.60.60
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

August 14, 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 AM1.1
Low
10:00 AM2.6
Moderate
11:00 AM4.6
Moderate
12:00 PM6
High
1:00 PM7.1
High
2:00 PM7.2
High
3:00 PM6.4
High
4:00 PM4.8
Moderate
5:00 PM3.2
Moderate
6:00 PM1.5
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 15, 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 AM1.1
Low
10:00 AM2.6
Moderate
11:00 AM4.7
Moderate
12:00 PM6.8
High
1:00 PM8.2
Very High
2:00 PM8.5
Very High
3:00 PM7.6
Very High
4:00 PM5.7
High
5:00 PM3.6
Moderate
6:00 PM1.8
Low
7:00 PM0.6
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 16, 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 AM0.2
Low
9:00 AM1.1
Low
10:00 AM1.5
Low
11:00 AM5
Moderate
12:00 PM6.9
High
1:00 PM8.6
Very High
2:00 PM8.7
Very High
3:00 PM7.6
Very High
4:00 PM6
High
5:00 PM3.7
Moderate
6:00 PM1.6
Low
7:00 PM0.6
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 17, 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 AM2.7
Moderate
11:00 AM5
Moderate
12:00 PM7.1
High
1:00 PM8.6
Very High
2:00 PM9
Very High
3:00 PM7.9
Very High
4:00 PM6
High
5:00 PM2.9
Moderate
6:00 PM0.6
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 18, 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 AM0.2
Low
9:00 AM0.4
Low
10:00 AM1.3
Low
11:00 AM4.4
Moderate
12:00 PM7.1
High
1:00 PM8.5
Very High
2:00 PM8.8
Very High
3:00 PM7.8
Very High
4:00 PM5.8
High
5:00 PM3.6
Moderate
6:00 PM1.8
Low
7:00 PM0.6
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)