UV Index for Thornton, CO

Current Thornton UV Index

0 (Low)

Last Updated 47 minutes ago

Hourly Thornton UV Index

The hourly Thornton, CO UV Index forecast for Sunday, June 15th, 2025.

5 Day Hourly Thornton UV Index Forecast

Last Updated 10 hours ago

The UV index forecast for the next five days in Thornton, CO has 3 days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Thornton over the next five days will be 12 on Monday, June 16th at 1:00 pm.

The UV index forecast for Sunday, June 15th in Thornton, CO is below.

Time UV Index Risk
11pm 0
Low

The UV index forecast for Monday, June 16th in Thornton, 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 0.5
Low
8am 1.7
Low
9am 3.8
Moderate
10am 6.4
High
11am 9.2
Very High
12pm 11.3
Extreme
1pm 12
Extreme
2pm 10
Very High
3pm 6.2
High
4pm 4.4
Moderate
5pm 1.7
Low
6pm 1.2
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, June 17th in Thornton, 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 0.5
Low
8am 1.5
Low
9am 3.3
Moderate
10am 5.3
Moderate
11am 7.7
High
12pm 8.2
Very High
1pm 7.8
High
2pm 3.8
Moderate
3pm 5.8
Moderate
4pm 3.4
Moderate
5pm 3
Moderate
6pm 1
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, June 18th in Thornton, 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 0.5
Low
8am 1.6
Low
9am 3.5
Moderate
10am 6
High
11am 8.5
Very High
12pm 10.4
Very High
1pm 11.1
Extreme
2pm 10.5
Very High
3pm 8.6
Very High
4pm 6.1
High
5pm 3.6
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, June 19th in Thornton, 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