UV Index for Grand Lake, CO

Current Grand Lake UV Index

0 (Low)

Last Updated 53 minutes ago

Hourly Grand Lake UV Index

The hourly Grand Lake, CO UV Index forecast for Wednesday, July 2nd, 2025.

5 Day Hourly Grand Lake UV Index Forecast

Last Updated 11 hours ago

The UV index forecast for the next five days in Grand Lake, CO has 4 days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Grand Lake over the next five days will be 12.4 on Wednesday, July 2nd at 1:00 pm.

The UV index forecast for Wednesday, July 2nd in Grand Lake, CO is below.

Time UV Index Risk

The UV index forecast for Thursday, July 3rd in Grand Lake, 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 6.5
High
11am 9.4
Very High
12pm 11.6
Extreme
1pm 12
Extreme
2pm 8.8
Very High
3pm 2.9
Low
4pm 4.2
Moderate
5pm 1.3
Low
6pm 0.2
Low
7pm 0.3
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Grand Lake, 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 1.4
Low
9am 3.2
Moderate
10am 6
High
11am 8.9
Very High
12pm 10.6
Very High
1pm 12
Extreme
2pm 6.2
High
3pm 7.1
High
4pm 6.9
High
5pm 1.9
Low
6pm 1.4
Low
7pm 0.6
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 5th in Grand Lake, 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 6.1
High
11am 8.8
Very High
12pm 10.8
Very High
1pm 11.7
Extreme
2pm 11.1
Extreme
3pm 9.1
Very High
4pm 6.4
High
5pm 3.8
Moderate
6pm 1.8
Low
7pm 0.6
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 6th in Grand Lake, 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