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Last Updated 40 minutes ago
The hourly Walnut Grove, CA UV Index forecast for Friday, October 31st, 2025.
Last Updated 15 hours ago
The UV index forecast for the next five days in Walnut Grove, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Walnut Grove over the next five days will be 4 on Friday, October 31st at 1:00 pm.
The UV index forecast for Friday, October 31st in Walnut Grove, CA is below.
| Time | UV Index | Risk | 
|---|---|---|
| 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 | 2.4 | Low | 
| 12pm | 3.5 | Moderate | 
| 1pm | 4 | Moderate | 
| 2pm | 3.7 | Moderate | 
| 3pm | 2.7 | Low | 
| 4pm | 1.5 | 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 Saturday, November 1st in Walnut Grove, 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 | Low | 
| 9am | 0.4 | Low | 
| 10am | 1.1 | Low | 
| 11am | 2.3 | Low | 
| 12pm | 3.4 | Moderate | 
| 1pm | 3.8 | Moderate | 
| 2pm | 3.5 | Moderate | 
| 3pm | 2.6 | Low | 
| 4pm | 1.4 | 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 Sunday, November 2nd in Walnut Grove, CA is below.
| Time | UV Index | Risk | 
|---|---|---|
| 12am | 0 | Low | 
| 1am | 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 | 1.1 | Low | 
| 10am | 2.2 | Low | 
| 11am | 3.3 | Moderate | 
| 12pm | 3.8 | Moderate | 
| 1pm | 3.4 | Moderate | 
| 2pm | 2.5 | Low | 
| 3pm | 1.4 | Low | 
| 4pm | 0.5 | Low | 
| 5pm | 0 | 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, November 3rd in Walnut Grove, CA is below.
| Time | UV Index | Risk | 
|---|---|---|
| 12am | 0 | Low | 
| 1am | 0 | Low | 
| 2am | 0 | Low | 
| 3am | 0 | Low | 
| 4am | 0 | Low |