UV Index for Castle Butte, SD

Current Castle Butte UV Index

0 (Low)

Last Updated 41 seconds ago

Hourly Castle Butte UV Index

The hourly Castle Butte, SD UV Index forecast for Wednesday, July 2nd, 2025.

5 Day Hourly Castle Butte UV Index Forecast

Last Updated 11 hours ago

The UV index forecast for the next five days in Castle Butte, SD has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Castle Butte over the next five days will be 10.4 on Thursday, July 3rd at 1:00 pm.

The UV index forecast for Wednesday, July 2nd in Castle Butte, SD is below.

Time UV Index Risk

The UV index forecast for Thursday, July 3rd in Castle Butte, SD 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 0.2
Low
7am 0.6
Low
8am 1.7
Low
9am 3.7
Moderate
10am 6.1
High
11am 8.4
Very High
12pm 10
Very High
1pm 10.4
Very High
2pm 9.6
Very High
3pm 7.7
High
4pm 5.3
Moderate
5pm 2.9
Low
6pm 1.4
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Castle Butte, SD 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 0.2
Low
7am 0.7
Low
8am 1.7
Low
9am 3.3
Moderate
10am 5.4
Moderate
11am 7.8
High
12pm 9
Very High
1pm 2.8
Low
2pm 5.9
Moderate
3pm 2.3
Low
4pm 3.4
Moderate
5pm 0.8
Low
6pm 1
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 5th in Castle Butte, SD 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 0.2
Low
7am 0.6
Low
8am 1.7
Low
9am 3.5
Moderate
10am 5.7
Moderate
11am 7.8
High
12pm 9.2
Very High
1pm 9.6
Very High
2pm 8.8
Very High
3pm 6.6
High
4pm 3.3
Moderate
5pm 1.8
Low
6pm 1.3
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 6th in Castle Butte, SD 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 0.2
Low