8.5 (Very High)
Last Updated 18 minutes ago
The hourly East St. Louis, IL UV Index forecast for Saturday, August 9th, 2025.
Last Updated 19 minutes ago
The UV index forecast for the next five days in East St. Louis, IL has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in East St. Louis over the next five days will be 9.7 on Tuesday, August 12th at 1:00 pm.
The UV index forecast for Saturday, August 9th in East St. Louis, IL is below.
| Time | UV Index | Risk |
|---|---|---|
| 2pm | 8 |
Very High |
| 3pm | 6.4 |
High |
| 4pm | 4.3 |
Moderate |
| 5pm | 2.3 |
Low |
| 6pm | 0.9 |
Low |
| 7pm | 0.2 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Sunday, August 10th in East St. Louis, 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 | 8.1 |
Very High |
| 1pm | 8.7 |
Very High |
| 2pm | 8.1 |
Very High |
| 3pm | 6.5 |
High |
| 4pm | 4.1 |
Moderate |
| 5pm | 2.3 |
Low |
| 6pm | 0.9 |
Low |
| 7pm | 0.2 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, August 11th in East St. Louis, 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 |
Low |
| 10am | 3.5 |
Moderate |
| 11am | 6.1 |
High |
| 12pm | 7.6 |
High |
| 1pm | 9.4 |
Very High |
| 2pm | 8.8 |
Very High |
| 3pm | 7 |
High |
| 4pm | 4.2 |
Moderate |
| 5pm | 1.2 |
Low |
| 6pm | 0.4 |
Low |
| 7pm | 0.1 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Tuesday, August 12th in East St. Louis, 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 | 4.6 |
Moderate |
| 11am | 7 |
High |
| 12pm | 9 |
Very High |
| 1pm | 9.7 |
Very High |
| 2pm | 9.1 |
Very High |
| 3pm | 5 |
Moderate |
| 4pm | 1.2 |
Low |
| 5pm | 0.7 |
Low |
| 6pm | 0.4 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Wednesday, August 13th in East St. Louis, 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 |