0 (Low)
Last Updated 53 minutes ago
The hourly Sleepy Hollow, CA UV Index forecast for Thursday, September 18th, 2025.
Last Updated 17 hours ago
The UV index forecast for the next five days in Sleepy Hollow, CA has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Sleepy Hollow over the next five days will be 6.6 on Friday, September 19th at 1:00 pm.
The UV index forecast for Thursday, September 18th in Sleepy Hollow, CA is below.
Time | UV Index | Risk |
---|---|---|
5am | 0 |
Low |
6am | 0 |
Low |
7am | 0 |
Low |
8am | 0.2 |
Low |
9am | 0.8 |
Low |
10am | 2.1 |
Low |
11am | 3.8 |
Moderate |
12pm | 5.5 |
Moderate |
1pm | 5.5 |
Moderate |
2pm | 5.7 |
Moderate |
3pm | 4.7 |
Moderate |
4pm | 2.9 |
Low |
5pm | 1.2 |
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 Sleepy Hollow, 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 | 0.2 |
Low |
9am | 1 |
Low |
10am | 2.5 |
Low |
11am | 4.2 |
Moderate |
12pm | 5.7 |
Moderate |
1pm | 6.6 |
High |
2pm | 6.1 |
High |
3pm | 4.9 |
Moderate |
4pm | 3.1 |
Moderate |
5pm | 1.5 |
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 Saturday, September 20th in Sleepy Hollow, 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 | 0.2 |
Low |
9am | 1 |
Low |
10am | 2.4 |
Low |
11am | 4.2 |
Moderate |
12pm | 5.8 |
Moderate |
1pm | 6.6 |
High |
2pm | 6.2 |
High |
3pm | 4.9 |
Moderate |
4pm | 3.2 |
Moderate |
5pm | 1.4 |
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 Sunday, September 21st in Sleepy Hollow, 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 |