Mammoth Lakes, California, United States UV Index Forecast

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

Current UV Index
1:40 pm

Very High10

UV INDEX

Hourly UV Index Forecast for Today
July 31, 2025

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

As of 1:40 pm today in Mammoth Lakes, California, United States, the UV Index is currently at a Very High level of 10.

Summary of Hourly UV Index Forecast for Today and Tomorrow in Mammoth Lakes, California, United States.

Today

Time Range UV Index Risk
6 am 0
Low
7 am 0
Low
8 am 3
Moderate
9 am 5
Moderate
10 am 7
High
11 am 8
Very High
12 pm 10
Very High
1 pm 10
Very High
2 pm 10
Very High
3 pm 8
Very High
4 pm 8
Very High
5 pm 6
High
6 pm 3
Moderate
7 pm 2
Low

Tomorrow

Time Range UV Index Risk
6 am 0
Low
7 am 1
Low
8 am 3
Moderate
9 am 5
Moderate
10 am 7
High
11 am 8
Very High
12 pm 10
Very High
1 pm 10
Very High
2 pm 10
Very High
3 pm 9
Very High
4 pm 8
Very High
5 pm 7
High
6 pm 4
Moderate
7 pm 2
Low

Daily Mammoth Lakes UV Index Forecast for the next 15 days:

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

UV Index in Nearby Cities