3.7 (Moderate)
Last Updated 58 minutes ago
The hourly Lower Merion, PA UV Index forecast for Friday, October 17th, 2025.
Last Updated 58 minutes ago
The UV index forecast for the next five days in Lower Merion, PA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Lower Merion over the next five days will be 4.1 on Friday, October 17th at 1:00 pm.
The UV index forecast for Friday, October 17th in Lower Merion, PA is below.
| Time | UV Index | Risk |
|---|---|---|
| 3pm | 2.7 |
Low |
| 4pm | 1.5 |
Low |
| 5pm | 0.6 |
Low |
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Saturday, October 18th in Lower Merion, PA 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 |
Low |
| 9am | 0.5 |
Low |
| 10am | 1.4 |
Low |
| 11am | 2.4 |
Low |
| 12pm | 3.5 |
Moderate |
| 1pm | 3.9 |
Moderate |
| 2pm | 3.7 |
Moderate |
| 3pm | 2.6 |
Low |
| 4pm | 1.5 |
Low |
| 5pm | 0.6 |
Low |
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Sunday, October 19th in Lower Merion, PA 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 |
Low |
| 9am | 0.5 |
Low |
| 10am | 1.3 |
Low |
| 11am | 2.5 |
Low |
| 12pm | 3.2 |
Moderate |
| 1pm | 3.6 |
Moderate |
| 2pm | 3.2 |
Moderate |
| 3pm | 2.4 |
Low |
| 4pm | 1.4 |
Low |
| 5pm | 0.3 |
Low |
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, October 20th in Lower Merion, PA 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 |
Low |
| 9am | 0.4 |
Low |
| 10am | 1.2 |
Low |
| 11am | 2.2 |
Low |
| 12pm | 3 |
Moderate |
| 1pm | 2.8 |
Low |
| 2pm | 3 |
Moderate |
| 3pm | 2.4 |
Low |
| 4pm | 1.3 |
Low |
| 5pm | 0.5 |
Low |
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Tuesday, October 21st in Lower Merion, PA 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 |
Low |