UV Index for Castle Rock, CO

Current Castle Rock UV Index

0.2 (Low)

Last Updated 26 minutes ago

Hourly Castle Rock UV Index

The hourly Castle Rock, CO UV Index forecast for Tuesday, December 23rd, 2025.

5 Day Hourly Castle Rock UV Index Forecast

Last Updated 21 hours ago

The UV index forecast for the next five days in Castle Rock, CO has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Castle Rock over the next five days will be 2.4 on Tuesday, December 23rd at 12:00 pm.

The UV index forecast for Tuesday, December 23rd in Castle Rock, CO is below.

Time UV Index Risk
9am 0.7
Low
10am 1.5
Low
11am 2
Low
12pm 2.4
Low
1pm 2.2
Low
2pm 1.4
Low
3pm 0.6
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 Wednesday, December 24th in Castle Rock, 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 0.2
Low
9am 0.7
Low
10am 1.4
Low
11am 2
Low
12pm 2.2
Low
1pm 2
Low
2pm 1.5
Low
3pm 0.6
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 Thursday, December 25th in Castle Rock, 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 0.2
Low
9am 0.7
Low
10am 1.5
Low
11am 2.2
Low
12pm 2.4
Low
1pm 2.1
Low
2pm 1.5
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 26th in Castle Rock, 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