UV Index for St. Mary, IL

Current St. Mary UV Index

0 (Low)

Last Updated 24 minutes ago

Hourly St. Mary UV Index

The hourly St. Mary, IL UV Index forecast for Saturday, July 12th, 2025.

5 Day Hourly St. Mary UV Index Forecast

Last Updated 13 hours ago

The UV index forecast for the next five days in St. Mary, IL has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in St. Mary over the next five days will be 10 on Monday, July 14th at 1:00 pm.

The UV index forecast for Saturday, July 12th in St. Mary, IL is below.

Time UV Index Risk
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.3
Low
8am 0.9
Low
9am 1.9
Low
10am 1.3
Low
11am 5.6
Moderate
12pm 7.8
High
1pm 7.9
High
2pm 5.6
Moderate
3pm 3.5
Moderate
4pm 2.5
Low
5pm 2
Low
6pm 0.7
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 13th in St. Mary, 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 0.4
Low
8am 1.3
Low
9am 2.9
Low
10am 4
Moderate
11am 6.1
High
12pm 7.3
High
1pm 8
Very High
2pm 4.5
Moderate
3pm 4
Moderate
4pm 4.2
Moderate
5pm 2.4
Low
6pm 1.2
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 14th in St. Mary, 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 0.4
Low
8am 1.2
Low
9am 2.6
Low
10am 5
Moderate
11am 7.5
High
12pm 9.3
Very High
1pm 10
Very High
2pm 8.6
Very High
3pm 6.4
High
4pm 3.9
Moderate
5pm 1.6
Low
6pm 0.9
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 15th in St. Mary, 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 0.3
Low