UV Index for Herald, CA

Current Herald UV Index

0 (Low)

Last Updated 11 seconds ago

Hourly Herald UV Index

The hourly Herald, CA UV Index forecast for Thursday, December 18th, 2025.

5 Day Hourly Herald UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Herald, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Herald over the next five days will be 2.1 on Friday, December 19th at 12:00 pm.

The UV index forecast for Thursday, December 18th in Herald, CA is below.

Time UV Index Risk
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.1
Low
9am 0.5
Low
10am 1.3
Low
11am 1.7
Low
12pm 2
Low
1pm 2
Low
2pm 1.4
Low
3pm 0.7
Low
4pm 0.2
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 Friday, December 19th in Herald, 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 0.1
Low
9am 0.6
Low
10am 1.2
Low
11am 1.7
Low
12pm 2.1
Low
1pm 1.9
Low
2pm 0.4
Low
3pm 0.6
Low
4pm 0
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 Saturday, December 20th in Herald, 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 0.5
Low
11am 0.7
Low
12pm 1.4
Low
1pm 1.7
Low
2pm 1.2
Low
3pm 0.5
Low
4pm 0.2
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 Sunday, December 21st in Herald, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low