8 (Very High)
Last Updated 40 minutes ago
The hourly Blue River, CO UV Index forecast for Thursday, September 18th, 2025.
Last Updated 40 minutes ago
The UV index forecast for the next five days in Blue River, CO has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Blue River over the next five days will be 9 on Thursday, September 18th at 1:00 pm.
The UV index forecast for Thursday, September 18th in Blue River, CO is below.
| Time | UV Index | Risk |
|---|---|---|
| 1pm | 9 |
Very High |
| 2pm | 8.4 |
Very High |
| 3pm | 6.6 |
High |
| 4pm | 4.1 |
Moderate |
| 5pm | 1.9 |
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 Friday, September 19th in Blue River, 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 | 3.1 |
Moderate |
| 11am | 4.5 |
Moderate |
| 12pm | 4.7 |
Moderate |
| 1pm | 7.1 |
High |
| 2pm | 6.8 |
High |
| 3pm | 4.2 |
Moderate |
| 4pm | 3.1 |
Moderate |
| 5pm | 1.5 |
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 Saturday, September 20th in Blue River, 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 | 1.3 |
Low |
| 10am | 3.4 |
Moderate |
| 11am | 5.8 |
Moderate |
| 12pm | 6.8 |
High |
| 1pm | 4.3 |
Moderate |
| 2pm | 3.6 |
Moderate |
| 3pm | 4.1 |
Moderate |
| 4pm | 3.4 |
Moderate |
| 5pm | 1.7 |
Low |
| 6pm | 0.5 |
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 Blue River, 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 |
Moderate |
| 11am | 4.8 |
Moderate |
| 12pm | 6 |
High |
| 1pm | 7 |
High |
| 2pm | 6 |
High |
| 3pm | 5.5 |
Moderate |
| 4pm | 1.5 |
Low |
| 5pm | 1.6 |
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 Monday, September 22nd in Blue River, 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 |