UV Index Today in Chicago, Illinois (IL)

Friday, May 22, 2026 -1:37 PMCDT (GMT-5)

The UV Index in Chicago, Illinois (IL) right now is 6.8. This reading was last updated at 1:00 PM CDT, about 37 minutes ago. The UV Index at2:00 PM CDT, in about 22 minutes from now, is expected to be 6.3.

The maximum UV Index today in Chicago was 6.8 at 1:00 PM CDT,37 minutes ago. The maximum UV Index tomorrow is expected to be 7.5 at 2:00 PM CDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
6.8
1:00 PM CDT
High

Tomorrow

May 23
7.5
2:00 PM CDT
Very High

UV Index Today Hourly

May 22

Weather models predict UV Index 6.8 for Chicago, Illinois (IL) today, peaking near 1:00 PM CDT - High risk level.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMCentral Daylight Time (CDT, GMT-5)Now: 1:37 PM00.31.12.23.95.45.86.86.352.11.20.50.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

The UV Index for Chicago, Illinois (IL) peaks at 7.5 tomorrow at 2:00 PM CDT, classified as Very High risk.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMCentral Daylight Time (CDT, GMT-5)00.20.6123.577.17.55.94.12.310.30
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 AM0.4
Low
8:00 AM1.3
Low
9:00 AM2.8
Moderate
10:00 AM3.9
Moderate
11:00 AM5.9
High
12:00 PM7.7
Very High
1:00 PM7.1
High
2:00 PM6.5
High
3:00 PM5.5
High
4:00 PM3.8
Moderate
5:00 PM2.3
Low
6:00 PM1
Low
7:00 PM0.3
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 AM0.3
Low
8:00 AM1.1
Low
9:00 AM2.2
Low
10:00 AM3.9
Moderate
11:00 AM5.4
Moderate
12:00 PM5.8
High
1:00 PM6.8
High
2:00 PM6.3
High
3:00 PM5
Moderate
4:00 PM2.1
Low
5:00 PM1.2
Low
6:00 PM0.5
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 AM0.2
Low
8:00 AM0.6
Low
9:00 AM1
Low
10:00 AM2
Low
11:00 AM3.5
Moderate
12:00 PM7
High
1:00 PM7.1
High
2:00 PM7.5
Very High
3:00 PM5.9
High
4:00 PM4.1
Moderate
5:00 PM2.3
Low
6:00 PM1
Low
7:00 PM0.3
Low
8:00 PM0
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 AM0.4
Low
8:00 AM1.2
Low
9:00 AM2.4
Low
10:00 AM4.2
Moderate
11:00 AM6.3
High
12:00 PM6.8
High
1:00 PM7.8
Very High
2:00 PM6.9
High
3:00 PM5
Moderate
4:00 PM3.5
Moderate
5:00 PM2.1
Low
6:00 PM1
Low
7:00 PM0.3
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 AM0.4
Low
8:00 AM1.3
Low
9:00 AM2.9
Moderate
10:00 AM4.9
Moderate
11:00 AM6.9
High
12:00 PM7.8
Very High
1:00 PM7.3
High
2:00 PM6.8
High
3:00 PM4.8
Moderate
4:00 PM2.6
Moderate
5:00 PM2
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
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

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