6.8 (High)
Last Updated 10 minutes ago
The hourly St. Johns, AZ UV Index forecast for Tuesday, July 1st, 2025.
Last Updated 4 hours ago
The UV index forecast for the next five days in St. Johns, AZ has 2 days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in St. Johns over the next five days will be 11.8 on Friday, July 4th at 12:00 pm.
The UV index forecast for Tuesday, July 1st in St. Johns, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 4pm | 4.2 |
Moderate |
| 5pm | 2 |
Low |
| 6pm | 0.6 |
Low |
| 7pm | 0.1 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Wednesday, July 2nd in St. Johns, AZ 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 | 0.1 |
Low |
| 7am | 0.7 |
Low |
| 8am | 2 |
Low |
| 9am | 4.3 |
Moderate |
| 10am | 7 |
High |
| 11am | 9.4 |
Very High |
| 12pm | 10.8 |
Very High |
| 1pm | 10.8 |
Very High |
| 2pm | 9 |
Very High |
| 3pm | 3.6 |
Moderate |
| 4pm | 0.3 |
Low |
| 5pm | 0.6 |
Low |
| 6pm | 0.1 |
Low |
| 7pm | 0.1 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Thursday, July 3rd in St. Johns, AZ 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 | 0.2 |
Low |
| 7am | 0.8 |
Low |
| 8am | 2.2 |
Low |
| 9am | 4.6 |
Moderate |
| 10am | 7.3 |
High |
| 11am | 9.8 |
Very High |
| 12pm | 11 |
Extreme |
| 1pm | 11.3 |
Extreme |
| 2pm | 6.8 |
High |
| 3pm | 5.5 |
Moderate |
| 4pm | 4.6 |
Moderate |
| 5pm | 1.6 |
Low |
| 6pm | 0.7 |
Low |
| 7pm | 0.2 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Friday, July 4th in St. Johns, AZ 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 | 0.2 |
Low |
| 7am | 0.8 |
Low |
| 8am | 2.3 |
Low |
| 9am | 4.7 |
Moderate |
| 10am | 7.6 |
High |
| 11am | 10.2 |
Very High |
| 12pm | 11.8 |
Extreme |
| 1pm | 11.8 |
Extreme |
| 2pm | 10.2 |
Very High |
| 3pm | 7.6 |
High |
| 4pm | 4.7 |
Moderate |
| 5pm | 2.3 |
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 Saturday, July 5th in St. Johns, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |