4.4 (Moderate)
Last Updated 59 minutes ago
The hourly Great Falls, MT UV Index forecast for Sunday, May 11th, 2025.
Last Updated 29 seconds ago
The UV index forecast for the next five days in Great Falls, MT has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Great Falls over the next five days will be 6.9 on Monday, May 12th at 1:00 pm.
The UV index forecast for Sunday, May 11th in Great Falls, MT is below.
| Time | UV Index | Risk |
|---|---|---|
| 12pm | 6.5 |
High |
| 1pm | 6.7 |
High |
| 2pm | 4.6 |
Moderate |
| 3pm | 4.4 |
Moderate |
| 4pm | 3.6 |
Moderate |
| 5pm | 2.5 |
Low |
| 6pm | 0.6 |
Low |
| 7pm | 0.6 |
Low |
| 8pm | 0.2 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, May 12th in Great Falls, MT 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 | 0.2 |
Low |
| 8am | 0.6 |
Low |
| 9am | 1.6 |
Low |
| 10am | 3 |
Moderate |
| 11am | 4.2 |
Moderate |
| 12pm | 5.6 |
Moderate |
| 1pm | 6.9 |
High |
| 2pm | 5.8 |
Moderate |
| 3pm | 4.6 |
Moderate |
| 4pm | 3.1 |
Moderate |
| 5pm | 1.6 |
Low |
| 6pm | 1.3 |
Low |
| 7pm | 0.6 |
Low |
| 8pm | 0.2 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Tuesday, May 13th in Great Falls, MT 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 | 0.2 |
Low |
| 8am | 0.6 |
Low |
| 9am | 1.7 |
Low |
| 10am | 3 |
Moderate |
| 11am | 3.5 |
Moderate |
| 12pm | 2.1 |
Low |
| 1pm | 5 |
Moderate |
| 2pm | 4.1 |
Moderate |
| 3pm | 2.6 |
Low |
| 4pm | 2.8 |
Low |
| 5pm | 1.8 |
Low |
| 6pm | 0.5 |
Low |
| 7pm | 0.2 |
Low |
| 8pm | 0.1 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Wednesday, May 14th in Great Falls, MT 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 | 0.2 |
Low |
| 8am | 0.7 |
Low |
| 9am | 1.7 |
Low |
| 10am | 3 |
Moderate |
| 11am | 4.4 |
Moderate |
| 12pm | 5.3 |
Moderate |
| 1pm | 6.4 |
High |
| 2pm | 6.2 |
High |
| 3pm | 4.8 |
Moderate |
| 4pm | 4 |
Moderate |
| 5pm | 2.3 |
Low |
| 6pm | 1.2 |
Low |
| 7pm | 0.5 |
Low |
| 8pm | 0.1 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Thursday, May 15th in Great Falls, MT 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 |