UV Index for Santa Anna, IL

Current Santa Anna UV Index

0 (Low)

Last Updated 12 minutes ago

Hourly Santa Anna UV Index

The hourly Santa Anna, IL UV Index forecast for Tuesday, August 19th, 2025.

5 Day Hourly Santa Anna UV Index Forecast

Last Updated 10 hours ago

The UV index forecast for the next five days in Santa Anna, IL has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Santa Anna over the next five days will be 9 on Thursday, August 21st at 1:00 pm.

The UV index forecast for Tuesday, August 19th in Santa Anna, IL is below.

Time UV Index Risk

The UV index forecast for Wednesday, August 20th in Santa Anna, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.2
Low
8am 0.8
Low
9am 2.2
Low
10am 4.2
Moderate
11am 6.4
High
12pm 8
Very High
1pm 8.6
Very High
2pm 8
Very High
3pm 6.3
High
4pm 4.1
Moderate
5pm 2.1
Low
6pm 0.8
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, August 21st in Santa Anna, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.2
Low
8am 0.9
Low
9am 2.4
Low
10am 4.4
Moderate
11am 6.7
High
12pm 8.4
Very High
1pm 9
Very High
2pm 8.3
Very High
3pm 6.5
High
4pm 4.2
Moderate
5pm 2.2
Low
6pm 0.8
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, August 22nd in Santa Anna, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.2
Low
8am 0.9
Low
9am 2.3
Low
10am 4.4
Moderate
11am 6.3
High
12pm 7.8
High
1pm 8.8
Very High
2pm 7.9
High
3pm 6.4
High
4pm 4
Moderate
5pm 2.1
Low
6pm 0.8
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, August 23rd in Santa Anna, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.1
Low