6 (High)
Last Updated 56 minutes ago
The hourly Montclair, CA UV Index forecast for Monday, September 15th, 2025.
Last Updated 55 minutes ago
The UV index forecast for the next five days in Montclair, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Montclair over the next five days will be 8.4 on Thursday, September 18th at 1:00 pm.
The UV index forecast for Monday, September 15th in Montclair, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 12pm | 7.6 |
High |
| 1pm | 8.2 |
Very High |
| 2pm | 7.3 |
High |
| 3pm | 5.4 |
Moderate |
| 4pm | 3.2 |
Moderate |
| 5pm | 1.4 |
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 Tuesday, September 16th in Montclair, CA 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 | 0.5 |
Low |
| 9am | 1.8 |
Low |
| 10am | 3.8 |
Moderate |
| 11am | 6 |
High |
| 12pm | 7.7 |
High |
| 1pm | 8.2 |
Very High |
| 2pm | 7.4 |
High |
| 3pm | 5.6 |
Moderate |
| 4pm | 3.3 |
Moderate |
| 5pm | 1.4 |
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, September 17th in Montclair, CA 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 | 0.5 |
Low |
| 9am | 1.7 |
Low |
| 10am | 3.6 |
Moderate |
| 11am | 6 |
High |
| 12pm | 7.6 |
High |
| 1pm | 7.8 |
High |
| 2pm | 5.6 |
Moderate |
| 3pm | 3.3 |
Moderate |
| 4pm | 0.8 |
Low |
| 5pm | 0.2 |
Low |
| 6pm | 0 |
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 Montclair, CA 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 |
Low |
| 10am | 3.2 |
Moderate |
| 11am | 6 |
High |
| 12pm | 7.9 |
High |
| 1pm | 8.4 |
Very High |
| 2pm | 7.6 |
High |
| 3pm | 5.7 |
Moderate |
| 4pm | 3.3 |
Moderate |
| 5pm | 1.4 |
Low |
| 6pm | 0.2 |
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 Montclair, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |