UV Index Today in Chicago, Illinois (IL)

Saturday, August 8, 2026 -11:00 AM CDT (GMT-5)

The UV Index in Chicago, Illinois (IL) right now is 6.6. This reading was last updated at 11:00 AM CDT, about less than a minute ago. The UV Index at12:00 PM CDT, in about 59 minutes from now, is expected to be 8.

The maximum UV Index today in Chicago is expected to be 8.4 at 1:00 PM CDT,1 hour and 59 minutes from now. The maximum UV Index tomorrow is expected to be 5.3 at 12:00 PM CDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 8
8.4
1:00 PM CDT
Very High

Tomorrow

August 9
5.3
12:00 PM CDT
Moderate

UV Index Today Hourly

August 8

Weather models predict UV Index 8.4 for Chicago, Illinois (IL) today, peaking near 1:00 PM CDT - Very 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: 11:00 AM00.31.12.64.56.688.47.86.142.10.80.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 9

The UV Index for Chicago, Illinois (IL) peaks at 5.3 tomorrow at 12:00 PM CDT, classified as Moderate risk.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMCentral Daylight Time (CDT, GMT-5)00.20.71.72.94.25.35.25.33.92.71.10.60.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

August 7, 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 AM0.1
Low
8:00 AM1.1
Low
9:00 AM2.5
Moderate
10:00 AM4.4
Moderate
11:00 AM6.3
High
12:00 PM7.7
Very High
1:00 PM8.2
Very High
2:00 PM7.5
Very High
3:00 PM5.9
High
4:00 PM3.9
Moderate
5:00 PM1.9
Low
6:00 PM0.7
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 8, 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 AM2.6
Moderate
10:00 AM4.5
Moderate
11:00 AM6.6
High
12:00 PM8
Very High
1:00 PM8.4
Very High
2:00 PM7.8
Very High
3:00 PM6.1
High
4:00 PM4
Moderate
5:00 PM2.1
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

August 9, 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 AM0.7
Low
9:00 AM1.7
Low
10:00 AM2.9
Moderate
11:00 AM4.2
Moderate
12:00 PM5.3
Moderate
1:00 PM5.2
Moderate
2:00 PM5.3
Moderate
3:00 PM3.9
Moderate
4:00 PM2.7
Moderate
5:00 PM1.1
Low
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 10, 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 AM0.9
Low
9:00 AM2.1
Low
10:00 AM1
Low
11:00 AM3.1
Moderate
12:00 PM6.2
High
1:00 PM6.9
High
2:00 PM6.2
High
3:00 PM4.8
Moderate
4:00 PM3.1
Moderate
5:00 PM1.5
Low
6:00 PM0.6
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 11, 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 AM0.8
Low
9:00 AM1.4
Low
10:00 AM2.8
Moderate
11:00 AM3.4
Moderate
12:00 PM3.6
Moderate
1:00 PM1
Low
2:00 PM1.3
Low
3:00 PM2.8
Moderate
4:00 PM0.1
Low
5:00 PM0.3
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)