UV Index Today in Madison, Wisconsin (WI)

Sunday, September 20, 2026 -11:23 AM CDT (GMT-5)

The UV Index in Madison, Wisconsin (WI) right now is 1.2. This reading was last updated at 11:00 AM CDT, about 23 minutes ago. The UV Index at12:00 PM CDT, in about 36 minutes from now, is expected to be 1.6.

The maximum UV Index today in Madison is expected to be 3.1 at 1:00 PM CDT,1 hour and 36 minutes from now. The maximum UV Index tomorrow is expected to be 1.9 at 11:00 AM CDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

September 20
3.1
1:00 PM CDT
Moderate

Tomorrow

September 21
1.9
11:00 AM CDT
Low

UV Index Today Hourly

September 20

Madison, Wisconsin (WI) sees Moderate-risk UV conditions today, with the index reaching3.1 around 1:00 PM CDT.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMCentral Daylight Time (CDT, GMT-5)Now: 11:23 AM00.10.30.71.21.63.12.62.52.41.10.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

September 21

The sun will be strongest in Madison, Wisconsin (WI) around 11:00 AM CDT tomorrow, with a UV Index of 1.9 (Low risk).

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PMCentral Daylight Time (CDT, GMT-5)00.30.91.61.91.71.50.90.50.20.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

September 19, 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
Low
9:00 AM0.1
Low
10:00 AM0.5
Low
11:00 AM0.6
Low
12:00 PM1.8
Low
1:00 PM1.9
Low
2:00 PM1.8
Low
3:00 PM1.5
Low
4:00 PM0.8
Low
5:00 PM0.2
Low
6:00 PM0.1
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

September 20, 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 AM0.3
Low
10:00 AM0.7
Low
11:00 AM1.2
Low
12:00 PM1.6
Low
1:00 PM3.1
Moderate
2:00 PM2.6
Moderate
3:00 PM2.5
Moderate
4:00 PM2.4
Low
5:00 PM1.1
Low
6:00 PM0.3
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

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

September 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 AM0.1
Low
9:00 AM0.9
Low
10:00 AM2.1
Low
11:00 AM2.7
Moderate
12:00 PM2.7
Moderate
1:00 PM3.7
Moderate
2:00 PM4.8
Moderate
3:00 PM3.5
Moderate
4:00 PM1.7
Low
5:00 PM0.6
Low
6:00 PM0.1
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

September 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 AM0.3
Low
9:00 AM1
Low
10:00 AM2.2
Low
11:00 AM2.2
Low
12:00 PM2.9
Moderate
1:00 PM2.8
Moderate
2:00 PM2.2
Low
3:00 PM1.5
Low
4:00 PM0.8
Low
5:00 PM0.4
Low
6:00 PM0.2
Low
7:00 PM0
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)