5 (Moderate)
Last Updated 35 minutes ago
The hourly Granby, CO UV Index forecast for Tuesday, September 16th, 2025.
Last Updated 35 minutes ago
The UV index forecast for the next five days in Granby, CO has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Granby over the next five days will be 8.2 on Friday, September 19th at 1:00 pm.
The UV index forecast for Tuesday, September 16th in Granby, CO is below.
| Time | UV Index | Risk |
|---|---|---|
| 1pm | 3.6 |
Moderate |
| 2pm | 5.5 |
Moderate |
| 3pm | 5.2 |
Moderate |
| 4pm | 1.8 |
Low |
| 5pm | 0.4 |
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 Granby, CO 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 | 2.6 |
Low |
| 11am | 5.1 |
Moderate |
| 12pm | 6.9 |
High |
| 1pm | 7.1 |
High |
| 2pm | 4.5 |
Moderate |
| 3pm | 4.2 |
Moderate |
| 4pm | 2.9 |
Low |
| 5pm | 1.4 |
Low |
| 6pm | 0.3 |
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 Granby, CO 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 | 0.4 |
Low |
| 9am | 1.2 |
Low |
| 10am | 3 |
Moderate |
| 11am | 5 |
Moderate |
| 12pm | 6.6 |
High |
| 1pm | 7.3 |
High |
| 2pm | 6.7 |
High |
| 3pm | 5.1 |
Moderate |
| 4pm | 3.2 |
Moderate |
| 5pm | 1.5 |
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 Friday, September 19th in Granby, CO 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 | 0.4 |
Low |
| 9am | 1.4 |
Low |
| 10am | 3.3 |
Moderate |
| 11am | 5.5 |
Moderate |
| 12pm | 7.4 |
High |
| 1pm | 8.2 |
Very High |
| 2pm | 7.6 |
High |
| 3pm | 5.7 |
Moderate |
| 4pm | 3.6 |
Moderate |
| 5pm | 1.5 |
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 Saturday, September 20th in Granby, CO 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 |