UV Index for Boulder, WY

Current Boulder UV Index

0 (Low)

Last Updated 42 minutes ago

Hourly Boulder UV Index

The hourly Boulder, WY UV Index forecast for Tuesday, July 1st, 2025.

5 Day Hourly Boulder UV Index Forecast

Last Updated 13 hours ago

The UV index forecast for the next five days in Boulder, WY has 1 day reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Boulder over the next five days will be 11.1 on Tuesday, July 1st at 1:00 pm.

The UV index forecast for Tuesday, July 1st in Boulder, WY is below.

Time UV Index Risk
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.4
Low
8am 1.3
Low
9am 3
Moderate
10am 5.4
Moderate
11am 8
Very High
12pm 10.1
Very High
1pm 11.1
Extreme
2pm 9.3
Very High
3pm 7.6
High
4pm 6.2
High
5pm 4.4
Moderate
6pm 2.2
Low
7pm 0.6
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 2nd in Boulder, WY 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 0.4
Low
8am 1.1
Low
9am 2.6
Low
10am 4.6
Moderate
11am 6.9
High
12pm 8.8
Very High
1pm 10
Very High
2pm 10
Very High
3pm 7
High
4pm 6.4
High
5pm 2.3
Low
6pm 0.1
Low
7pm 0.2
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Boulder, WY 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 0.2
Low
8am 0.8
Low
9am 1.8
Low
10am 3.5
Moderate
11am 4.9
Moderate
12pm 6.7
High
1pm 7.6
High
2pm 8.4
Very High
3pm 6
High
4pm 5.9
Moderate
5pm 2
Low
6pm 0.8
Low
7pm 0.7
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Boulder, WY 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