Lyons, Colorado, United States UV Index Forecast

Find the UV Index forecast for today, tomorrow and the next 15 days for Lyons, Colorado, United States, The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated hourly.

NOW
1:42 pm

High6

UV INDEX

Hourly UV Index Forecast for Today
October 31, 2025

0
8 am
0
9 am
1
10 am
2
11 am
6
12 pm
6
1 pm
6
2 pm
5
3 pm
3
4 pm
  • Low
    1-2
  • Moderate
    3-4-5
  • High
    6-7
  • Very High
    8-9-10
  • Xtreme
    11+

As of 1:42 pm today in Lyons, Colorado, United States, the UV Index is currently at a High level of 6.

Summary of Hourly UV Index Forecast for Today and Tomorrow in Lyons, Colorado, United States.

Today

Time Range UV Index Risk
8 am 0
Low
9 am 0
Low
10 am 1
Low
11 am 2
Low
12 pm 6
High
1 pm 6
High
2 pm 6
High
3 pm 5
Moderate
4 pm 3
Moderate

Tomorrow

Time Range UV Index Risk
8 am 0
Low
9 am 2
Low
10 am 3
Moderate
11 am 5
Moderate
12 pm 5
Moderate
1 pm 6
High
2 pm 6
High
3 pm 5
Moderate
4 pm 4
Moderate

Daily Lyons UV Index Forecast for the next 15 days:

6
31 Oct
6
1 Nov
5
2 Nov
4
3 Nov
5
4 Nov
5
5 Nov
6
6 Nov
6
7 Nov
5
8 Nov
5
9 Nov
4
10 Nov
5
11 Nov
5
12 Nov
2
13 Nov
  • Low
    1-2
  • Moderate
    3-4-5
  • High
    6-7
  • Very High
    8-9-10
  • Xtreme
    11+

UV Index in Nearby Cities