UV Index for Castle Hills, TX

Current Castle Hills UV Index

5.6 (Moderate)

Last Updated 58 minutes ago

Hourly Castle Hills UV Index

The hourly Castle Hills, TX UV Index forecast for Thursday, September 4th, 2025.

5 Day Hourly Castle Hills UV Index Forecast

Last Updated 22 hours ago

The UV index forecast for the next five days in Castle Hills, TX has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Castle Hills over the next five days will be 10.1 on Thursday, September 4th at 2:00 pm.

The UV index forecast for Thursday, September 4th in Castle Hills, TX is below.

Time UV Index Risk
12pm 8.2
Very High
1pm 9.8
Very High
2pm 10.1
Very High
3pm 8.7
Very High
4pm 5.6
Moderate
5pm 2.9
Low
6pm 1.2
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, September 5th in Castle Hills, TX 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 2.3
Low
11am 2.1
Low
12pm 7.1
High
1pm 9.4
Very High
2pm 9.5
Very High
3pm 8.5
Very High
4pm 5.7
Moderate
5pm 3.3
Moderate
6pm 1.1
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, September 6th in Castle Hills, TX 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 0.5
Low
10am 1
Low
11am 5.2
Moderate
12pm 7.5
High
1pm 7.8
High
2pm 3.4
Moderate
3pm 6.6
High
4pm 6.5
High
5pm 2.6
Low
6pm 0.7
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, September 7th in Castle Hills, TX 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