Saint John, Indiana, United States UV Index Forecast

Find the UV Index forecast for today, tomorrow and the next 15 days for Saint John, Indiana, 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
6:15 pm

Low2

UV INDEX

Hourly UV Index Forecast for Today
July 17, 2025

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

As of 6:15 pm today in Saint John, Indiana, United States, the UV Index is currently at a Low level of 2.

Summary of Hourly UV Index Forecast for Today and Tomorrow in Saint John, Indiana, United States.

Today

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

Tomorrow

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

Daily Saint John UV Index Forecast for the next 15 days:

7
17 Jul
8
18 Jul
5
19 Jul
2
20 Jul
8
21 Jul
8
22 Jul
8
23 Jul
8
24 Jul
7
25 Jul
8
26 Jul
7
27 Jul
8
28 Jul
7
29 Jul
8
30 Jul
  • Low
    1-2
  • Moderate
    3-4-5
  • High
    6-7
  • Very High
    8-9-10
  • Xtreme
    11+

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