UV Index for Alta, WY

Current Alta UV Index

7 (High)

Last Updated 25 minutes ago

Hourly Alta UV Index

The hourly Alta, WY UV Index forecast for Monday, June 30th, 2025.

5 Day Hourly Alta UV Index Forecast

Last Updated 4 hours ago

The UV index forecast for the next five days in Alta, WY has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Alta over the next five days will be 10.7 on Tuesday, July 1st at 1:00 pm.

The UV index forecast for Monday, June 30th in Alta, WY is below.

Time UV Index Risk
5pm 4.6
Moderate
6pm 2.5
Low
7pm 1
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 1st in Alta, 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 0.3
Low
8am 1.2
Low
9am 2.7
Low
10am 5
Moderate
11am 7.6
High
12pm 9.8
Very High
1pm 10.7
Very High
2pm 8.1
Very High
3pm 5.9
Moderate
4pm 4.5
Moderate
5pm 1.5
Low
6pm 2.2
Low
7pm 1
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 2nd in Alta, 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 0.3
Low
8am 1
Low
9am 2.5
Low
10am 4.4
Moderate
11am 6.8
High
12pm 8.6
Very High
1pm 7.6
High
2pm 5.4
Moderate
3pm 3
Moderate
4pm 6.6
High
5pm 4.2
Moderate
6pm 2.3
Low
7pm 0.9
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Alta, 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 0.3
Low
8am 0.7
Low
9am 1.4
Low
10am 3.6
Moderate
11am 6
High
12pm 7.1
High
1pm 8.6
Very High
2pm 7.2
High
3pm 6.6
High
4pm 5
Moderate
5pm 1.9
Low
6pm 0.8
Low
7pm 0.6
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Alta, 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