Hidden Lake, CO: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Hidden Lake, Boulder County, Colorado (CO). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
1:02 PM MDT

11Risk: Extreme

(Updated 2 minutes ago.)

As of 1:02 PM MDT, the UV Index in Hidden Lake, CO is 11 (Extreme).
The UV Index is expected to fall to 9.6 (Very High) between 2:00 PM - 3:00 PM MDT today.

Hourly UV Index Forecast for Today
Saturday, June 28, 2025

12 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PMMountain Daylight Time (MDT)0123456789101112Current Time: 1:02 PM, MDT

UV Index Data sourced from the NOAA.


As of 1:02 PM MDT today in Hidden Lake, CO, the UV Index is currently at its highest level for the day, 11, which is classified as extreme risk. As the day progresses, the UV index is expected to fall as the sun sets.

It will return to moderate levels at 4:00 PM and then drop to low levels again from 6:00 PM onwards. As the day transitions into the night, the UV Index will drop back down to 0 at 8:00 PM.


Summary of Hourly UV Index Forecast for Today and Tomorrow in Hidden Lake, CO

Today

Time RangeUV IndexRisk
12:00 AM - 9:00 AM (MDT)0 - 1.6
Low
9:00 AM - 10:00 AM3.5
Moderate
10:00 AM - 11:00 AM6
High
11:00 AM - 12:00 PM8.6
Very High
12:00 PM - 2:00 PM10.6 - 11
Extreme
2:00 PM - 4:00 PM7.7 - 9.6
Very High
4:00 PM - 6:00 PM3.2 - 3.5
Moderate
6:00 PM - 12:00 AM0 - 0.9
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 9:00 AM (MDT)0 - 1.5
Low
9:00 AM - 10:00 AM3.4
Moderate
10:00 AM - 11:00 AM5.9
High
11:00 AM - 4:00 PM8.4 - 10.3
Very High
4:00 PM - 5:00 PM5.5
High
5:00 PM - 12:00 AM0 - 2.2
Low

Detailed Hourly Hidden Lake UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
1:00 PM - 2:00 PM (Now, MDT)11
Extreme
2:00 PM - 3:00 PM 9.6
Very High
3:00 PM - 4:00 PM 7.7
Very High
4:00 PM - 5:00 PM 3.5
Moderate
5:00 PM - 6:00 PM 3.2
Moderate
6:00 PM - 7:00 PM 0.9
Low
7:00 PM - 8:00 PM 0.4
Low
8:00 PM - 9:00 PM 0
Low
9:00 PM - 10:00 PM 0
Low
10:00 PM - 11:00 PM 0
Low
11:00 PM - 12:00 AM 0
Low

Current UV Index in Nearby Cities