2 (Low)
Last Updated 14 minutes ago
The hourly Fort Defiance, AZ UV Index forecast for Wednesday, September 17th, 2025.
Last Updated 5 hours ago
The UV index forecast for the next five days in Fort Defiance, AZ has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Fort Defiance over the next five days will be 9.2 on Friday, September 19th at 1:00 pm.
The UV index forecast for Wednesday, September 17th in Fort Defiance, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 6pm | 0.7 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Thursday, September 18th in Fort Defiance, 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 |
Low |
| 7am | 0 |
Low |
| 8am | 0.2 |
Low |
| 9am | 1.2 |
Low |
| 10am | 3 |
Moderate |
| 11am | 5.4 |
Moderate |
| 12pm | 7.4 |
High |
| 1pm | 7.9 |
High |
| 2pm | 7 |
High |
| 3pm | 5.8 |
Moderate |
| 4pm | 3.9 |
Moderate |
| 5pm | 2.2 |
Low |
| 6pm | 0.7 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Friday, September 19th in Fort Defiance, 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 |
Low |
| 7am | 0 |
Low |
| 8am | 0.3 |
Low |
| 9am | 1.2 |
Low |
| 10am | 3.2 |
Moderate |
| 11am | 5.7 |
Moderate |
| 12pm | 8 |
Very High |
| 1pm | 9.2 |
Very High |
| 2pm | 8.8 |
Very High |
| 3pm | 6.8 |
High |
| 4pm | 4.4 |
Moderate |
| 5pm | 2.2 |
Low |
| 6pm | 0.7 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Saturday, September 20th in Fort Defiance, 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 |
Low |
| 7am | 0 |
Low |
| 8am | 0.2 |
Low |
| 9am | 1.2 |
Low |
| 10am | 3.1 |
Moderate |
| 11am | 5.6 |
Moderate |
| 12pm | 7.9 |
High |
| 1pm | 9.1 |
Very High |
| 2pm | 8.8 |
Very High |
| 3pm | 7 |
High |
| 4pm | 4.6 |
Moderate |
| 5pm | 2.3 |
Low |
| 6pm | 0.6 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Sunday, September 21st in Fort Defiance, 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 |
Low |